TU 14-4-406-73

MINISTRY OF FERROUS METALLURGY OF THE USSR

State Committee for Standards USSR Council of Ministers Registered and entered in the register state standards 11/22/73 No. 111180 AGREED Chief Engineer of Soyuzchasprom MpsA and SU Novikov O.D. «16». 07.1973 Chief engineer of Glavmashdetali Ministry of Mechanical Engineering for the food industry non-household appliances Yakupov. «___" _______ 1973

UDC 669.14−418.2 Group B-34 APPROVED Chief Engineer of Glavmetiz MCHM USSR Orinichev V.I. May 23, 1973

HEAT-TREATED STEEL BAND
FOR WINDING SPRINGS

Technical conditions
TU 14−4-406−73
(Instead of ChMTU 3664−53)

The term of introduction is October 1, 1973. Agreed: Chief Engineer Orlovsky watch factory Novikov V.S. July 28, 1973 Chief Engineer of the Association Lenmashelectrobytribor Avetin «___" _______ 1973

Valid October 1, 1978 Designed by: Chief Engineer of the Leningrad steel mill Burgukov G.G. May 22, 1973

ODR 26256 12/11/73

1973 g.

This specification applies to heat-treated steel strap for winding springs.

1. NOMENCLATURE. VARIETY

1.1. Depending on the purpose, the tape is subdivided:

a) by material:

• steel grade 70S2XA — for springs of watch mechanisms;
• steel grade 40KKHNM (K40NKhM) — a corrosion-resistant non-magnetic alloy for springs of watch mechanisms operating in high humidity conditions at temperatures of ± 50 ° С;
• steel grade 70 — for winding toy springs.

NOTE:

• Steel grade 70S2XA or 70 is specified in the order.
• Tape from alloy 40KHNM is manufactured in technically justified cases by agreement of the parties.

b) by manufacturing accuracy:

Tape from steel 70S2XA and alloy 40KHNM:

• normal accuracy in thickness and width;
• increased accuracy in thickness and width;
• increased accuracy in thickness;

70 grade steel strip:

• normal accuracy in width and thickness.

1.2. The dimensions of the tape and the maximum deviations for them must correspond to those indicated in table. No. 1, 2 and 3

1.2.1. S O R T A M E N T
strips made of steel grade 70S2XA

Table 1

NOTES:

• The dimensions of the tape in width are 0.5 mm within the specified limits.
• Tape with a width of 4 mm with a thickness of 0.2 mm and more and 5 mm with a thickness of 0.25 mm and more can be made crimped.
• A tape with maximum deviations in width of increased accuracy is manufactured in technically justified cases by agreement of the parties.

1.2.2. S O R T A M E N T
tapes from alloy grade 40KHNM

table 2

* NOTE: Two-sided maximum deviations during 1974 are converted to minus with a corresponding change in the nominal size.

1.2.3. S O R T A M E N T
70 grade steel belts

Table 3

NOTE to tables 1, 2, 3:
Thickness dimensions indicated in parentheses are not recommended and after January 1, 1947, they are to be excluded as not corresponding to a number of preferred numbers in accordance with GOST 8032−56.

Example of a symbol:
Tape of increased accuracy in thickness and width made of 70S2XA steel or 40KXNM alloy with dimensions of 0.24x11 mm:

• tape 70S2XA VM — 0.24x11 TU 14−4-406−73;
• tape 40KHNM VI — 0.24x11 TU 14−4-406−73.

2. TECHNICAL REQUIREMENTS

2.1. The strip is made of steel grade 70 in accordance with GOST 1050−60, 70S2XA in accordance with GOST 14959−69, alloy 40KHNM in accordance with GOST 10994−64.

2.2. The mechanical properties of the tape must correspond to those indicated in table. No. 4 and 5.

2.2.1. Tape made of steel grade 70S2XA
and alloy 40KHNM (K40NHM)

Table 4

2.2.2. Mechanical properties (spring angle and number of bends) of a tape made of 40KKHNM alloy must correspond to those indicated in Table 4. After the release and can be checked by the consumer after the release of the tape according to the mode specified by the tape manufacturer in the certificate.

2.2.3. 70 grade steel strip

Table 5

2.3. The surface of the strips made of steel grades 70S2XA and 70 should be colored. Colorization color from light yellow to violet.

In one roll, simultaneously different shades of colorization color are allowed within the specified colors.

NOTE: By agreement of the parties, the tape with a thickness of 0.1−0.15 mm can be supplied light-spotted with tint colors from yellow to dark blue.

2.4. Alloy 40KHNM strip is supplied with a light surface.

2.5. On the surface of the tape there should be no sunsets, deep shells, delamination, transverse marks. There should be no rust on the surface of the steel strip.

Longitudinal scratches, risks, cavities, imprints and from rolls and roughness, the depth or height of which does not exceed half of the maximum deviation in thickness, are allowed.

2.6. The height of the tape surface must be at least 8 class in accordance with GOST 2789−59.

2.7. The edges of the tape should be sanded (dull).

There should be no flaws or cracks on the edges of the tape. Traces from abrasive processing and unpolished places (shortage) in an amount of not more than 10 per 1 skein are allowed.

NOTE: 4mm and 5mm tape edges can be naturally rounded.

2.8. The tape should be supplied in rolls with an inner diameter of 100 to 300 mm.

Crimped tape can be supplied in bundles or on spools.

2.9. The minimum weight of a roll, consisting of one piece, is set at the rate of 0.60 kg per 1 mm2 of the tape cross-section.

In one roll, several pieces of tape of the same grade of material, manufacturing accuracy, one type of surface, each at least 20 m long, are allowed. The number of such rolls should not exceed 10% of the batch.

3. RULES OF ACCEPTANCE AND TEST METHODS

3.1. The finished tape is accepted by the technical control department of the supplying plant in accordance with these specifications.

The supplier guarantees that the tape meets the requirements of these specifications.

3.2. The tape is delivered in batches. A batch should consist of a tape of the same size, grade of material, one heat, one precision of manufacture.

3.3. The quality control of the tape by the technical control of the supplier is carried out in accordance with the following sampling and sampling rules and test methods.

3.4. Each roll is subject to external inspection and measurement.

Inspection of the surface and edges is carried out with the naked eye, the size is checked with a micrometer and a vernier caliper.

3.5. To control the spring angle and the number of bends, 10% of the rolls are taken from each batch.

3.5.1. The spring angle is determined according to the standard of the Leningrad Steel Rolling Plant STP 9−38−73 and according to Table 6.

Table 6

3.5.2. Determination of the number of bends is made in accordance with GOST 13813−68 and in accordance with table No. 7.

Table 7

3.6. Determination of the cleanliness (roughness) of the surface is carried out according to GOST 2789−59 using the MKS-11 microscope.

3.7. For each type of test, one sample should be taken from each controlled roll.

3.8. The chemical composition of the metal of the tape is certified by the certificate of the metal supplier. If necessary, the chemical composition of the metal of the tape is determined in accordance with GOST 2331−63, GOST 11655−65.

3.9. If unsatisfactory results are obtained for at least one of the indicators, repeated tests are carried out on it with a double roll from the number that did not pass the tests.

The results of the retest are considered final.

3.10. For control verification by the consumer of the quality of products for compliance with the requirements of these specifications, the selection rules and test methods specified above should be applied.

Notes: For a strip made of alloy grade 40KZNM, the certificate additionally specifies the mode of heat treatment (tempering) of the metal at the consumer.

4. MARKING AND PACKAGING

4.1. Marking and packaging of the tape in accordance with GOST 2614−65.

5. PROCEDURE OF PAYMENT FOR PRODUCTS

5.1. The wholesale price is calculated according to the appendix.

Ministry of Ferrous Metallurgy
GLAVMETIZ
Technical conditions
registered
«27». 08.1983 I. Barysheva

application
to TU 14−4-406−73

Heat-treated steel tape
for winding springs

Initial data for price calculation:

1. As a base tape / analogue /, a heat-treated steel tape for winding springs is used, colorized with rounded edges from steel grade U10A of normal accuracy according to ChMTU 3664−53 with additional-1−4, the price of which is listed in the price list 01−5 p. 70 -71 h. 1.

2. The tape according to the new technical conditions differs in the following quality indicators from the analog tape / cm. appendix 2 /.

3. The wholesale price for a strip made of steel grade 70C2XA under the new technical conditions is determined by the formula Tsn = / TsbTsm x Ku / x / / 12fed7086c7b6956090083aa.

Tsb = for all sizes according to CMTU 3663−53 made of U10A steel.

Base price for newly introduced tape dimensions with thickness: 0.21 mm; 0.23 mm; 0.25 mm; 0.27 mm; 0.32 mm; 0.36 mm; 0.39 mm; 0.42 mm; 0.47 mm and 0.62 mm are accepted at the list price of the tape of the nearest smaller size / pr. 01−05, Wed 13/.

For other newly introduced sizes, the Central Bank is determined using KS — the coefficient of price ratio in accordance with GOST 2614−65 pp. 56−57 and the price of the tape according to ChMTU 3664−53 of the nearest sizes and Kc of the price of the tape according to ChMTU.

The base price for sizes 0.10x14 and 15−19 is calculated by:

Ks the price of the tape according to GOST 2614−65 and the price of the tape according to ChMTU.

GOST2614−65 =

GOST2614−65 =

The base price for the size 0.14x4−16 is calculated by:

Kc tape prices according to GOST 2614−65 and tape cents according to ChMTU.

GOST2614−65 =

GOST2614−65 =

GOST2614−65 =

=

=

=

=

=

=

=

=

=

Base price for size 0.15x14−15−19

=

Base price for size 0.19x14−15−19

=

=

Base price for size 0.20x14−15−19

=

=

The base price for a tape 0.49x6−9 is calculated by:
Кс price of tape 0,45х0,48 according to ChMTU

=

=

=

=

The base price for the size 0.50x6−9 is calculated by:
Ks the price of the tape is 0.45 and the price of the tape is 0.5x10 ChMTU

=

=

=

=

The base price for the size 0.55x6−9 is calculated by:
Ks tape price 0.45 and tape price 0.55 ChMTU

=

=

=

=

CM = +62 rubles. — pr. 01−05 bldg. 71
KU = 1
Пп = 0
Pr = 0.

Calculation of wholesale prices for tape for new
specifications for grade 70

The price for tape from grade 70 is determined by the formula:

Tsn = / Tsb Tsm x Ku / x / / Pr.

Cr = for each size according to new TU 14−4-406−73

CM = -76 rubles. The price of rolled up brand 70S2XA rubles
for 1 ton / pr. 01.03 p. 391 /,
stamps 70−126 rubles for 1 ton / additional 2 page 15 /
price list 01−03 /.

Ku = 1.3 — / Appendix No. 2 to the position /.

Tsn = Ts / new TU / — (76 x 1.3) = Tsb — 96 rubles.

According to the new technical conditions, a strip made of steel grade 70 is priced cheaper than a strip made of grade 70S2XA by 96 rubles per 1 ton.

Wholesale price calculation for tape
from alloy 40KHNM

1. An analogue is a tape made of 40KHNM precision alloy for elastic elements in accordance with GOST 14117−69, wholesale prices for which are listed in Appendix 12 to price list No. 01−05.

2. According to the new technical conditions, the tape differs from the analogue tape in the following quality indicators:

Wholesale price calculation

The wholesale price for a tape made of 40KHNM alloy is determined by the formula:

Tsn = / Tsb Tsm x Ku / x/ / 12fed7086c7b6956090083aa37fc

1) Central bank — the price of a tape with a width of 100−200 mm for each size according to GOST 14117−69 / Add. 12 to the avenue No. 01−05.

2) Tsm = 0; Ku = 1.

3) PP — for width: 6.75−7.65 mm = 37%

9.0−11 mm = 27%

13−25 mm = 20%

/ Add. 23 to the price list No. 01−05 /

4) PP — for quality requirements = + 8%:

incl. surcharge: 5% — per spring angle / by agreement /;

5% — for testing the tape for bend / pr. No. 01−05 p. 62 /

2% discount — with the exception of the tensile strength test / Appendix No. 1 «Regulations» /.

5) Pr = 0.

Wholesale price for 40KHNM alloy tape
according to TU 14−4-406−73

Surcharges and discounts to the prices of the tremotreated tapes for mainsprings made of steel grades 70S2XA and 40KHNM:

• For increased accuracy in thickness, a surcharge of 10%.
• For increased accuracy in thickness and width 15% surcharge.
• 10% discount on delivery of light-spotted tape
• When manufacturing individual belt sizes by flattening, a surcharge of 25%.

Head of Planning Department of DSPZ Ivaschenko «28» .07.1973

Head of Planning Department Lenmashbytelektropribor «23» .07.1973 Head of Planning Department Orlovsky plant Khokhlova «31». 07.1973

The calculation of wholesale prices has been verified by: Andreev I.A. Copy is right.
Head laboratory of economics on July 17, 1973

Appendix # 1

Wholesale prices for heat-treated steel tape from steel 70S2XA
according to TU 14−4-406−73

A tape according to TU 14−4-406−73 of grade 70 steel is regarded as cheaper than a tape made of Maki 70S2XA steel by 96 rudders per ton

Appendix # 2

Qualitative indicators	ChMTU 3664−53	TU project	Tightening, loosening	Base
1	2	3	4	five
steel grade	U10-U12A, at the request of the customer 70S2XA	70S2XA, 40KNXM, m. 70	Introduced new brands 40KNXM and m.70 are excluded U10A-U12A	Surcharge for metal
Assortment	0.10−0.30x3.15 0.32−0.60x4−15 0.63−0.80x4.15 0.10−0.30x15−40 1.32−0.60x15−40 0.63−0.80x15−40	0.10−0.30x4−26 0.32−0.40x5−40 0.42−0.55x6−40 0.55−0.70x10−40 0.80x10−10
Surface	Surface cleanliness is not specified. Must be polished. At the request of the consumer with a light surface.	Surface finish 8 cl. The determination is made in accordance with GOST 2789−59. Colored ribbon made of 40KNXM alloy — light. On request it is made light-cured.	polish. already 8 cl. solable.	Discount pr. 01−05, building 62
Mechanical properties	Spring angle Number of folds	Spring angle Number of folds	Without changes Without changes
Groove	It is not checked and is not a defect	Not specified	Without changes
Sabotage	At the request of the customer, it is checked for sagging	Not specified	Without changes
Edges	Sanded	Sanded	Without changes
Manufacturing precision	For brand 70S2XA normal. and increased. by thickness.	For grade 70S2XA and alloy 40KNXM normal., Increased accuracy in thickness and increased. accuracy in thickness and width.
Delivery conditions	Trim in rolls and can on spools.	Tape 0.2x4.0 and 0.25 and 5 mm higher. Maybe put. plush. with natural round. chrome. in rolls and on spools.

Change to Application of calculation
wholesale prices for steel tape
three-treated for clockwork
springs from alloy 40KHNM
TU 14−4-406−73

The surcharge for the quality indicators of the 40KHNM alloy tape should be 14% instead of 8%; incl. surcharges: for spring angle — 5% / by agreement /; for testing the tape for bending — 5% / pr. No. 01−05 p.62 /; for heat treatment — 6% / add. 29 p. 2 /; discounts — 2% excluding the test of ultimate tensile strength / Appendix No. 1 «Regulations» /.

Wholesale price for 40KHNM alloy tape
according to TU 14−4-406−73

Surcharges and discounts to the prices of heat-treated winding bands made of steel 70S2KA and 40KHNM.

• For increased accuracy in thickness and width, a surcharge of 10%
• For high accuracy in thickness and width, 15% surcharge
• 10% discount on delivery of light-spotted tape.

ODR 19193−2914
02/12/1974 g.

— 2-

• When manufacturing individual belt sizes by flattening, a surcharge of 25%.

Head of the planning department of LSPZ L.N. Ivaschenko October 16, 1973.

Head of Planning Department Lenmashelectropribor «____" October 1973 Head of Planning Department Oryol plant October 17, 1973

The calculation of wholesale prices has been agreed upon:

Head laboratory I.A. Andreev
Economics Institute 05.11.75

MINISTRY OF FERROUS METALLURGY
NIIMETIZ

«26» .11.1975 PO Box 45−82

Head of the WIS Comrade Makarchuk I.N. 109001 Moscow

AMENDMENT LETTER
to specifications
TU 14−4-406−73
«Heat-treated steel tape for winding springs»

1. Clause 1.1. paragraph «a» is stated as follows:

«1.1. The tape is subdivided:

a) by material:

• — from steel grade 70S2XA — for springs of watch mechanisms;
• — from non-magnetic deformation-hardening alloy 40KHNM — for springs of watch mechanisms operating in aggressive environments and tropical climates at temperatures up to +400 ° С;
• — made of 70 grade steel for winding toy springs.

Note:

• steel grade 70S2XA or 70 is specified in the order.
• 40KHNM alloy strip is produced in technically justified cases. «

2. Clause 2.1. set out in a new edition:

• «2.1. The strip is made of steel grade 70 in accordance with GOST 1050−74, 70S2XA in accordance with GOST 14959−69, alloy 40KHChM in accordance with GOST 10994−74 «.
• Reason: replacement of GOST 10994−64 by GOST 10994−74 and GOST 1050−60 by GOST 1050−74.

Head laboratory V.V. Ivaschenko
standardization

Noted
agreement 4 / 1.76.

Ministry of ferrous metallurgy of the USSR

AGREED.

APPROVED Chief Engineer of Glavmetiz Sornichev V.I. August 01, 1975

HEAT-TREATED STEEL BAND

FOR WINDING SPRINGS

Technical conditions
TU 14−4-406−73
Change No. 1

Introduction date: 01.12.75

For a period of:

Designed by: Chief Engineer of the Leningrad steel mill (Burkov G.G.) May 08, 1974

Change No. 1
Heat-treated steel strap for winding springs
TU 14−4-406−73
Sheet 2

This change applies to a tape made of stainless alloy 40KHNM with dimensions of 0.23x6.75 and 0.63x20 mm, intended for winding springs manufactured by the enterprise p / ya G-4145, Moscow

1. Supplement paragraph 1.2.2. section 1 «Assortment» TU 14−4-406−73 with a size of 0.63x20 mm with permissible deviations: in thickness — normal accuracy — 0.05 mm, increased accuracy — 0.04 mm; in width — normal accuracy — 0.4 mm, increased accuracy — 0.3 mm.

2. Supplement section 2 «Technical requirements» with clause 2.10:

• p.2.10. Rib curvature of a strip made of stainless alloy 40KHNM measuring 0.23x6.75 and 0.63x20 mm for an enterprise with p / y G-4149 should not exceed 5 mm per 1 meter of length.

3. Supplement section 3 «Acceptance rules and test methods» with paragraphs 3.11 and 3.12:

• See paragraph 3.11. To check the rib curvature of a tape measuring 0.23x6.75 and 0.63x20 mm, samples from 5% of the rolls of the batch are taken from alloy 40KHNM.
• See point 3.12. The determination of the rib curvature of the tape 0.23x6.74 and 0.63x20 mm is carried out in accordance with GOST 2283−69.

4. Technical specifications shall be supplemented with section 5 as amended:

• «five. Payment procedure for products
• 5.1. The calculation of the wholesale price is set according to the appendix. «

Head department 03.10.75
standardization I. Barchtev

Appendix to TU 14−4-406−73
with change # 1

Heat-treated steel strip
for steel winding springs
brand 40KHNM

As an analogue, a tape made of a precision alloy 40KHNM is accepted for elastic elements in accordance with GOST 14117−69, the wholesale prices for which are listed in Supplement No. 12 to avenue 01−05.

According to the technical specifications, the tape differs from the analogue tape in the following quality indicators:

-2-

The wholesale price for a tape is determined by the formula:

Tsn = (Tsb ± Tsm x Ku) (1 ± W / 100) ± Pr

CB — for each thickness according to GOST 14117−69

PP ₁ = 56% for tape 0.23x6.75 mm

PP ₂ = 34% for a tape 0.63x20 mm

Calculation of the wholesale price for the tape,
stipulated by change No. 1
to TU 14−4-406−73

1. When supplying a tape of increased accuracy in thickness, a surcharge of 10%

2. When supplying a tape of increased accuracy in thickness and width, a surcharge of 15%

Wholesale price calculation
compiled by:
Head of Planning Department
L.N. Ivaschenko
May 26, 1975

Wholesale price calculation agreed:
/ Head laboratory of economics
I.A. Andreev
October 02, 1975

APPROVED BY manufacturer May 28, 1984 AGREED base organization for standardization January 6, 1984 with the customer April 28, 1984

UDC 669.14−418.2 Group B-34 84.09.11 No. 111180/06

Right: _____

HEAT-TREATED STEEL TAPE FOR
WINDING SPRINGS OF ROLLER SPRINGS
BRUSH HOLDERS FOR ELECTRIC MACHINES

Technical conditions
TU 14−4-406−73

Change No. 6

Introduction period: 01.10.84 g

Clause 1.2.1. Table 1. Notes.

Clause 2 of the notes has been revised:
«2. A strip 4 mm wide with a thickness of 0.2 mm or more, a strip with a width of 5 mm with a thickness of 0.25 mm or more, a strip 6 mm wide with a thickness of 0.3 mm or more can be made by crimping. The manufacturing method of the above tapes is chosen by the manufacturer. «

Clause 2.7. The note is stated in the new edition:
«Note. The edges of flattened belts can be naturally rounded. «

Clause 3.12. Replaced reference: GOST 2283−69 to GOST 2199−76

-2-

Continuation of change 6
to TU 14−4-406−73

The title page has the code: OKP 12 3100

Clause 2.1. State in a new edition:
«The tape is made of steel grades 70, 70S2XA in accordance with GOST 14959−79, alloy 40KHNM in accordance with GOST 10994−74.»

The strip made by crimping in accordance with Note 2 of Table 1 is priced at the prices of the main table Appendix 1.

Registered:
June 25, 1984

OKP 12 3100 APPROVED BY manufacturer September 10, 1985 DEVELOPED base organization on standardization September 6, 1985 AGREED with the customer 23 August 1985 19 August 1985 08 August 1985 Right:

UDC 669.14−418.2 Group B 34 10/25/85, No. 111150/01

HEAT-TREATED STEEL TAPE FOR
WINDING SPRINGS OF ROLLER SPRINGS
BRUSH HOLDERS FOR ELECTRIC MACHINES

Technical conditions
TU 14−4-406−73

Change No. 7

Introduction date: 01.11.85
The term of validity of technical conditions shall be extended until 01.10.90.

Clause 2.10 shall be stated in the wording:

Amendment No. 7 TU 14−4-406−73 Page 2

«2.10. The crescent shape of a tape made of 40KHNM alloy with dimensions of 0.23x6.75 and 0.63x20 mm for two customers should not exceed 5 mm per 1 m of length. «

Clauses 3.11 and 3.12. Replace words:
«Rib curvature» to «crescent».

Replace Appendix 2 with a new one.

Sheet 2. In the lower stamp in the column «Letter» indicate — «A; in the column «Sheets» — «15» instead of «11».

Registered:
September 16, 1985

Appendix 2
to tu 14−4-406−73
form 3.1A
(required)

The calculation of the codes was checked:
Senior Researcher
laboratory of standardization V.A. Kudasheva

Head department of standardization
and the quality of N.A. Galkina

OKP 12 3100 APPROVED BY according to established order January 14, 1987 AGREED according to established order with interested organizations Right:

HEAT-TREATED STEEL TAPE FOR
WINDING SPRINGS OF ROLLER SPRINGS
BRUSH HOLDERS FOR ELECTRIC MACHINES

TECHNICAL CONDITIONS
TU 14−4-406−73

Change No. 8

Introduction period: 05/01/87

No. 111180/08

TU 14−4-406−73 amendment No. 8 Page. 2

Add the introductory part: «and some springs».

Clause 1.1. subparagraph a), add: «from alloy 40KHNM-VI for cold-worked springs».

Clause 1.1. subparagraph b), after the words «from alloy 40KHNM» add «40KHNM-VI».

Clause 1.2.2. Table 2. The title should be supplemented with the words «40KHNM-VI».

Clause 2.1. Add the words: «alloy 40KHNM-VI» according to TU 14−131−417−79 «.

Clause 2.2.1. Table 4. The title should be supplemented with the words: «40KHNM-VI».

Clauses 2.2.2., 2.2.4 and 2.4 after the words «from alloy 40KHNM» shall be supplemented with «40KHNM-VI» and further in the text.

Clause 2.10. add: «and tapes from alloy 40KHNM-VI with the size of 0.19x6.75 mm».

Clause 3.11. after the words «from alloy 40KHNM» add «and tapes with dimensions of 0.19x6.75 mm from alloy 40KHNM-VI».

Clause 3.12. after the words: «and tapes 0.63x20 mm» add «as well as tapes 0.19x6.75 mm» and further in the text.

Appendix 1 shall be supplemented with Appendix 1-a (Sheet 16-a).

Supplement the specifications with Appendix 3 (Sheet 18) Appendix 4 (Sheet 19).

Registered:
January 22, 1987

Appendix 1-a
to TU 14−4-406−73
with change No. 1−8
Mandatory

The table of wholesale prices for tape according to TU 14−4-406−73 with changes No. 1−7 should be added:

Head laboratory p / p
pricing 12/30/86
VNIImetiza V.A. Serkin

Appendix 3
Mandatory

REGISTRATION SHEET
changes TU 14−4-406−73

VIFS No. 111180 dated 22.11.73

Appendix 4
Reference
to TU 14−4-406−73

SCROLL
documents for which there are
references in technical conditions

MINISTRY OF METALLURGY OF THE USSR

OKP 12 3100

36/2347 Group B 34 I approve: Deputy director for scientific work of VNIIMETIZ B.A. Kolomiets «31» .08.1990

HEAT-TREATED STEEL TAPE FOR
WINDING SPRINGS AND ROLLER SPRINGS
BRUSH HOLDERS FOR ELECTRIC MACHINES

TECHNICAL CONDITIONS
TU 14−4-406−73

Change No. 9

Original holder: Leningrad Steel Rolling Plant.

Introduction period: 20.10.90

AGREED: Deputy chief engineer Minyar hardware and metallurgical factory telegram No. 6330 from 23.07.90 M.A. Besharev Chief Engineer of the Oryol Watch Factory telegram no. 1133 from 19.07.90 Yu.F. Kolosov Deputy Director of the Scientific Research Institute of Instrumentation telegram number I-1411 from 24.07.90 NS Danilin Chief Engineer of Kirovograd Branch of SKB Typewriters telegram no. 2136 dated 26.07.90 V.V. Tkachenko

DEVELOPED: Chief Engineer of the Leningrad Steel Rolling Plant V.V. Kryzhanovsky «13». 02.1990 02.11.1990 10/18/1990 No. 111180/09

Change No. 9 to TU 14−4-406−73 Sheet 2

The validity period of the TU shall be extended until 01.10.95.

Clause 2.8. Replace the word: «in bays» with «skeins».

Clause 3.5.1. The textual part before table 6 shall be stated in a new edition:
«Determination of the spring angle is carried out according to the procedure given in GOST 15146−69 and according to table 6».

Clause 3.8. Replace the reference to GOST 22536.0−77 + 22536.7−77 with «GOST 22536.0−87 + 22536.7−88.

Section 4. The name shall be supplemented with the words «transportation and storage».

Clause 4.1. to state in a new edition:
«4.1. Marking, packaging, transportation and storage — in accordance with GOST 21996−76 «.

Appendix 3.4 / sheets 18, 19 of amendment No. 8 / to cancel and replace with new sheets 18, 19 of amendment No. 9.

Expertise carried out
And about. head department of standardization
VNIIMETIZ
ON. Galkina
30.08.90 g.

Appendix 4
TU 14−4-406−73
Mandatory

REGISTRATION SHEET
changes TU 14−4-406−73

VIFS 111180 dated November 22, 1973.

Appendix 3
Reference
to TU 14−4-406−73

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documents referenced in the TU