GB/T 42252-2022
Torque and pretightening force test method of high lock nut for aviation (English Version)

Standard No.

GB/T 42252-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 42252-2022

Scope

This document describes the test methods for torque and preload force of high-lock nuts used in aerospace applications. This document is suitable for testing the locking torque, loosening torque, twisting torque and pre-tightening force of aviation high-lock nuts.

GB/T 42252-2022 Referenced Document

• JJG 269 Verification Regulation of Torsion Testing Machines

GB/T 42252-2022 history

• 2022 GB/T 42252-2022 Torque and pretightening force test method of high lock nut for aviation