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1、GOST 5915-70 1 UDC 621.882.31: 006.354 Group 33 USSR STATE STANDARD HEXAGON NUTS OF ACCURACY CLASS B Design and dimensions KP (All-Union Product Classification Code) 12 8300 GOST 5915-70* (CMEA Standard 3683-82) In place of GOST 5915-62 Validity term set by Decree No. 178, dated February, 18, 1970,
2、of the State Committee for Standards, Measures . and Measuring Instruments under USSR Council of Ministers from 01.07.72 regarding dimension “across flats” S = 13 mm from 01.07.73 Reviewed in 1985. Term extended by Decree No. 1311, dated 12.05.85, of Gosstandart until 01.01.92 Failure to comply with
3、 this Standard will result in legal proceedings This Standard applies to hexagon nuts of accuracy class B with thread diameter from 1.6 to 48 mm. The Standard fully complies with CMEA Standard 3683-82. (Amended wording. Amendment No. 4). Official Edition Reprinting is prohibited English Version Appr
4、oved by Interstandard * Revised Edition (August, 1985) with Amendments Nos. 2, 3, 4, and 5, approved in February 1974, March 1981, June 1983, May 1985; (IUS (Standards Information Catalog) 3-74, 6-81, 11-83, 8-85). GOST 5915-70 2 2. Design and dimensions of nuts shall conform to those specified in t
5、he drawing and table. Modification 1 Modification 2 Modification 3 GOST 5915-70 3 Nominal thread diameter d 1.6 2 2.5 3 (3.5) 4 5 6 Coarse 0.35 0.40 0.45 0.50 0.60 0.70 0.80 1 Pitch of thread Fine Dimension “across flats” S 3.2 4.0 5.0 5.5 6 7 8 10 Diameter of circumscribed circle e. minimum 3.3 4.2
6、 5.3 5.9 6.4 7.5 8.6 10.9 Minimum 1.6 2 2.5 3 3.5 4 5 6 da Maximum 1.84 2.30 2.9 3.45 4.00 4.60 5.75 6.75 dw, minimum 2.9 3.6 4.5 5.0 5.4 6.3 7.2 9.0 Minimum 0.2 0.2 0.3 0.4 0.4 0.4 0.5 0.5 hw Maximum 0.10 0.10 0.10 0.15 0.15 0.15 0.15 0.15 Height 1.3 1.6 2.0 2.4 2.8 3.2 4.0 5 N o t e . Dimensions o
7、f nuts in brackets are not recommended to be used. E x a m p l e o f c o n v e n t i o n a l d e s i g n a t i o n of a nut of modification 1 with thread diameter d = 12 mm, with coarse pitch of a thread and tolerance zone 6H, of strength class 5, without coating: 12-6.5 5915-70 The same, but of mod
8、ification 2, with fine pitch of thread and tolerance zone 6H, of strength class 12, made from steel of grade 40X, with coating of 6 m thick: 2121,25-6.12.40.016 5915-70 (Amended wording. Amendment No. 2, 3, 4, and 5). 3. Thread shall be in accordance with GOST 24705-81. (Amended wording. Amendment N
9、o. 2, 4). 3a. Dimension tolerances, shape deviations, arrangement of surfaces and test methods, not stipulated by this Standard, shall be in accordance with GOST 1759.1-82 GOST 5915-70 4 8 10 12 (14) 16 (18) 20 (22) 24 (27) 30 36 42 48 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 4 4.5 5 1 1.25 1.25 1.5 1.
10、5 1.5 1.5 1.5 2 2 2 3 3 3 13 17 19 22 24 27 30 32 36 41 46 55 65 75 14.2 18.7 20.9 23.9 26.2 29.6 33.0 35.0 39.6 45.2 50.9 60.8 71.3 82.6 8 10 12 14 16 18 20 22 24 27 30 36 42 48 8.75 10.8 13.0 15.1 17.3 19.4 21.6 23.8 25.9 29.2 32.4 38.9 45.4 51.8 11.7 15.5 17.2 20.1 22.0 24.8 27.7 29.5 33.2 38.0 4
11、2.7 51.1 59.9 69.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.25 0.25 6.5 8 10 11 13 15 16 18 19 22 24 29 34 38 3b. Permissible surface defects of nuts and test methods shall be in accordance with GOST 1759.3-83 3a, 3b ( Subs
12、equently Inserted, Amendment No. 5). 4. (Removed. Amendment No. 5). 5. Technical requirements shall be in accordance with GOST 1759-70. 6. (Removed. Amendment No. 2). 7. The mass of nuts is specified in Appendix 1. 8. (Removed. Amendment No. 4). GOST 5915-70 5 APPENDIX 1 Reference Mass of steel nuts
13、 (modification 1) with coarse pitch of athread Nominal thread diameter d, mm Theoretical mass of 1000 nuts, kg Nominal thread diameter d, mm Theoretical mass of 1000 nuts, kg 1.6 0.046 14 24.480 2 0.096 16 33.170 2.5 0.199 18 47.030 3 0.274 20 62.600 3.5 0.385 22 76.770 4 0.609 24 107.000 5 1.137 27
14、 161.400 6 2.441 30 224.500 8 5.130 36 376.900 10 11.370 42 623.880 12 15.400 48 956.200 To determine the mass of nuts made of other materials the values of mass given in table shall be multiplied by the following coefficients: 0.356: for aluminum alloy; 1.080: for brass (Amended wording. Amendment
15、No. 4). Appendix 2. (Removed. Amendment No. 4). GOST 5915-70 6 Amendment No. 6 to GOST 5915-70 Hexagon nuts of accuracy class B. Design and dimensions. Approved and put into effect by the Decree No. 780, dated 28.03.89 of USSR State Committee for Standards Date of introduction 01.01.90; regarding di
16、mensions “across flats” S = 16, 18, 21, 34 mm 01.01.91 Clause 2. The table. Parameter “Dimension “across flats” S”. Value 17 shall be replaced with 16; 19 with 18; 22 with 21; 32 with 34. Parameter “Diameter of circumscribed circle e, minimum”. Value 18.7 shall be replaced with 17.6; 20,9 with 19.9;
17、 23.9 with 22.8; 35.0 with 37.3; parameter “dw, minimum”. Value 15.5 shall be replaced with 14.5; 17.2 with 16.5; 20.1 with 19.2; 29.5 with 31.4; Parameter “Height m”. Value 4.0 shall be replaced with 4.7; 5 with 5.2; 6.5 with 6.8; 8 with 8.4; 10 with 10.8; 11 with 12.8; 13 with 14.8; 15 with 16.4;
18、16 with 18.0; 18 with 19.8; 19 with 21.5; 22 with 23.6; 24 with 25.6; 29 with 31.0; Table shall be added with notes 2, 3 “2. The nuts for articles designed prior to 01.01.91 are allowed to be used in dimensions specified in Appendix 2. 3. It is allowed to manufacture nuts in nominal height m no less
19、 than 0.8 d and maximum deviations in accordance with GOST 1759.1-82 provided the requirements of GOST 1759.5-87 are observed”. Clause 5. Reference to GOST 1759-70 shall be replaced with reference to GOST 1759.0-87. Appendix 1. The table. Value 0.046 shall be replaced with 0.074; 0.096 with 0.141; 0
20、.199 with 0.272; 0.274 with 0.377; 0.385 with 0.497; 0.609 with 0.800; 1.137 with 1,440; 2,441- with 2,573; 5.130 with 5.548; 11.370 with 10.220; 15.400 with 15.670; 24.480 with 25.330; 33.170 with 37.610; 47.030 with 53.270; 62.600 with 71.440; 76.770 with 103.150; 107.000 with 122.870; 161.400 wit
21、h 175.280; 224.500 242.540; 376.900 with 416.780. This Standard shall be supplemented with reference Appendix 2. APPENDIX 2 Reference mm Nominal thread diameter d 10 12 14 22 Dimension “across flats” S 17 19 22 32 Diameter of circumscribed circle e, minimum 18.7 20.9 23.9 35.0 dw, minimum 15.5 17.2
22、20.1 29.5 (IUS (Standards Information Catalog) No. 6, 1989) GOST 5915-70 7 Amendment No. 7 to GOST 5915-70 Hexagon nuts of accuracy class B. Design and dimensions Approved by the Interstate Council for Standardization, Metrology and Certification (report No. 6, dated 21.10.94) Date of introduction 1
23、996-01.01. Clause 2. Table. Note 2 shall be reworded as follows: “2. It is allowed to manufacture nuts with dimensions specified in the Appendix 2”; An example of conventional designation shall be reworded as follows: “E x a m p l e o f c o n v e n t i o n a l d e s i g n a t i o n of a nut of modif
24、ication 1, with thread diameter d = 12 mm, with dimension “ across flats” S = 18 mm, with coarse pitch of a thread with tolerance zone 6H, of strength class 5, without coating: 12-6.5 (S18) 5915-70 The same, but of modification 2, with dimension “across flats” S = 19 mm, with fine pitch of a thread
25、with tolerance zone 6H, of strength class 12, made of steel 40X, with coating 01 of 6 m thick: 2121,25-6.12.40.016 5915-70 Appendix 2. Table shall be supplemented with parameter “Theoretical mass of 1000 nuts (of modification 1) with coarse pitch of a thread, kg”. Nominal thread diameter d 10 12 14 22 Theoretical mass of 1000 nuts (modification 1) with coarse pitch of a thread, kg 12.06 18.40 28.91 85.67 (IUS (Standards Information Catalog) No. 9, 1995)