SAE AS9581C-2024
WASHER, KEY - 90 DEG, LOCKING, CRES, UNS S32100

Standard No.

SAE AS9581C-2024

Release Date

2024

Published By

Society of Automotive Engineers (SAE)

Latest

SAE AS9581C-2024

Introduction

Aerospace Standard Washer, Key - 90 Degree, Locking, Corrosion Resistant Steel (CRES), UNS S32100

AS9581™

This specification defines requirements for a key-locating locking washer made of corrosion resistant steel (CRES) with the material composition similar to UNS S32100. It specifies dimensional tolerances, heat treatment procedures, surface finish requirements, and manufacturing standards to ensure proper functionality in aerospace applications. The washer is designed for use in aircraft and space systems where precise fitment and reliable locking are critical.

SAE AS9581C-2024 history

• 2024 SAE AS9581C-2024 WASHER, KEY - 90 DEG, LOCKING, CRES, UNS S32100
• 2019 SAE AS9581B-2019 WASHER, KEY - 90 DEG, LOCKING, CRES, UNS S32100
• 2013 SAE AS9581B-2013 Washer, Key - 90 DEG., Locking, CRES, UNS S32100
• 2007 SAE AS9581A-2007 WASHER, KEY - 90 DEG. LOCKING, CRES, UNS S32100
• 2002 SAE AS9581A-2002 Washer, Key - 90 DEG., Locking, CRES, UNS S32100
• 1999 SAE AS9581-1999 Washer@ Key-CRES@ AMS 5510@ 90 Degree@ Locking

Standard and Specification