GB/T 5649-1985 Locking nuts for flared pipe fittings

GB/T 5649-1985 Flared pipe joint locking nut GB/T5649-1985 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Flared type tube fittings--
Locknut
This standard applies to flared type tube fittings lock nuts for piping systems with oil and gas as the medium. Marking example:
Flared pipe fitting locking nut with outer diameter D of 10mm: Locking nut 10GB5649-85
Published by National Bureau of Standards on 19B5-11-25bZxz.net
UDC 621.643.4
+621.882.3
GB5649—B5
Implemented on 1986-09-01
Pipe outer diameter
M10 ×1
M14 ×1.5
M22× 1.5
M27 ×2
M33×2
M42×2
GB5649B5
Technical conditions are in accordance with the provisions of GB5653-85 "Technical conditions for ferrule-type pipe joints". Additional remarks:
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and approved by the Standardization Research Institute of the Ministry of Machinery Industry. Weight (steel)
kg/100 pieces=
This standard was initiated by the Standardization Research Institute of the Ministry of Machinery Industry, Shanghai Hydraulic Accessories Factory, Changchun Automobile Research Institute, and Shanghai Hydraulic and Pneumatic Research Institute. The main drafters of this standard are Hu Lusheng, Li Ningning, and Zhang Qianlong.
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