GB/T 9074.27-1988 External serrated lock washers for assemblies

GB/T 9074.27-1988 External Serrated Lock Washers for Assemblies GB/T9074.27-1988 Standard download decompression password: www.bzxz.net

1 Subject Internal
National Standard of the People's Republic of China
Serrated lock washer external teethfor assembly
UDC 621. 882
GB 9074.27-88
This standard specifies the external serrated lock washers for assembly with specifications of 3 to 12 mm, which are applicable to fasteners-assemblies. 2 Reference Standards
GB94.2 Technical Conditions for Elastic Washers Toothed and Serrated Lock Washers GB1237 Marking Method for Fasteners
GB90 Acceptance Inspection, Marking and Packaging of Fasteners 3 Dimensions
The dimensions are shown in the following figure and table.
Approved by the National Machinery Industry Commission on April 16, 1988, and implemented on January 1, 1989
Specifications (larger thread diameter)
(nominal)
4 Technical requirements
Technical conditions shall be in accordance with GB94.2.
5 Marking
5.1 The marking method shall be in accordance with the provisions of GB1237. bzxz.net
5.2 Marking example:
GB9074. 27 - 88
Marking washers for assemblies with external serrated locking washers with a specification of 4 mm and a material of 65Mn without surface treatment GB9074.274
Additional instructions:
This standard is proposed by the National Technical Committee for Standardization of Fasteners. This standard is under the jurisdiction of the Standardization Institute of the National Machinery Industry Commission. This standard is drafted by the Standardization Institute of the National Machinery Industry Commission. 566
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