4310-00-354-5421 VALVE,SAFETY RELIEF Index 5310-00-354-5426 WASHER,KEY

National Stock Number:
5310-00-354-5425

Federal Supply Class:
5310

National Item Identification Number:
003545425

Description:
WASHER,KEY

Detail:
A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.


Manufacturer Information:
10121319A486GNIMIKKEISTOKESKUS NCB FINLAND
ST4M131-176301THE BOEING COMPANY


Techincal Specification:
HOLE DIAMETER0.631 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
OUTSIDE DIAMETER1.200 INCHES NOMINAL
OVERALL DISTANCE INCLUDING KEYS1.540 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.032 INCHES NOMINAL
MATERIALALUMINUM ALLOY 2024 OVERALL
SPECIAL FEATURESEXTERNAL KEY BENT 90 DEGREES WITH A 0.046 INCH DIA HOLE,WASHER HAS AN INTERNAL STRAIGHT KEY
STYLE DESIGNATORKEY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
TAPERED KEY MINOR WIDTH0.180 INCHES NOMINAL
THIRD HOLE DIAMETER0.380 INCHES NOMINAL


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