GB/T 856-1988

Active

External tab washers

外舌止动垫圈

Standard Type

GBT

ICS

21.060.30

CCS

J13

Status

Active

Issue Date

1988-02-06

Implementation

1989-01-01

Centralized Committee

中国机械工业联合会

Issuing Authority

中国机械工业联合会

Application Summary AI generated

GB/T 856-1988 specifies the dimensions, technical requirements, and marking of external tab washers used to prevent loosening of threaded fasteners under vibration or dynamic loads. It is applied in mechanical assemblies, such as automotive, aerospace, and industrial machinery, where a locking mechanism is needed to secure nuts or bolts against rotation. The standard ensures interchangeability and reliability in applications requiring tamper-resistant or vibration-proof connections.

Related Standards

GB/T 9074.20-2004 Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers GB/T 62.1-2004 Wing nuts--Round wing GB/T 62.2-2004 Wing nuts--Square wing GB/T 9074.5-2004 Cross recessed small pan head screw andwasher assemblies with plain washers GB/T 62.3-2004 Wing nuts--Pressing wing GB/T 3098.19-2004 Mechanical properties of fasteners--Blind rivets with break pull mandrel GB/T 62.4-2004 Wing nuts--Die-casting wing GB/T 3098.20-2004 Mechanical properties of fasteners--Wing nuts with specified proof torque

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.