5305-01-386-3578 SCREW,CAP,HEXAGON HEAD Index 5330-01-386-3580 SEAL,PLAIN

National Stock Number:
5310-01-386-3579

Federal Supply Class:
5310

National Item Identification Number:
013863579

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:
MS14198K5P96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DISTANCE FROM KEY CENTER TO WIRE HOLE CENTER0.093 INCHES MINIMUM AND 0.123 INCHES MAXIMUM
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
INTERNAL PREBENT KEY WIDTH0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM
MATERIALSTEEL COMP XM-12 OVERALL
OUTSIDE DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
STYLE DESIGNATORINTERNAL PREBENT KEY
SPECIAL FEATURESSECOND KEY, ONE SIDE: LARGER KEY UNDRECUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
WIRE HOLE DIAMETER0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM


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