GB/T 3759-1983 Nuts for ferrule type pipe fittings

This standard is only applicable to ferrule type pipe fittings. GB/T 3759-1983 Nuts for ferrule type pipe fittings GB/T3759-1983 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Nuts for Compression Fittings
Bite type tube fittings-NutsThis standard applies only to compression fittings. 0.5X46
Marking example
Nuts with nominal pressure class J and outer diameter D of 14mm. Nut J14 GB 3759—83
Published by the National Bureau of Standards on June 17, 1983
UDC 621.643.4bzxz.net
:621.882/.887
GB3759—88
Others√
Implemented on April 1, 1984
Except for Mengmengda
M12 ×1.25
M30 ×2
M33×2
M36×2
M42×2
M45×2
M48×2
M52×2
M18×1,5
M22×1.5.
M27 × 1.5
M30×2
M33×2
M39×2
GB 3759-83
Limit deviation of nominal size
Note, (reclamation is calculated value, specific gravity is 7.85kg/dm.②Under the condition that it does not affect the use, L dimension is allowed to grow into a hexagonal shape. Technical conditions shall be in accordance with the provisions of GB3765-83. Additional remarks:
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Standardization Institute of the Ministry of Machinery Industry.e
(kg/100 pieces)
This standard is drafted by the Standardization Institute of the Ministry of Machinery Industry of Taoyuan, and drafted by Xiyang Heavy Machinery Factory, Chongqing Heavy Automobile Research Institute, Dalian Combined Machine Tool Research Institute, Zhejiang Haiyan County Pipe Fittings Factory, Shanghai No. 1 Bureau of Mechanical and Electrical Science and Technology Information Institute, and the 708th Institute of the Ministry of Aerospace. The main drafters of this standard are Hu Lusheng, Liu Dequan, Cheng Zhenshi, and Tu Mu. From the date of implementation of this standard, the original departmental standard JB1981-77 "Nuts for tube fittings" will be invalid.
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