NSN 5310-00-527-5581

Part Details | KEY WASHER

5310-00-527-5581 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.

Alternate Parts: 5025613, 5025613, 5310-00-527-5581, 00-527-5581, 5310005275581, 005275581

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-527-558101869 ( WASHER, KEY )
REFERENCE DRAWINGS & PICTURES

KEY

Cross Reference | NSN 5310-00-527-5581
Part Number Cage Code Manufacturer
502561319205SPRINGFIELD ARMORY
502561319200US ARMY ARDEC RDECOM
Technical Data | NSN 5310-00-527-5581
Characteristic Specifications
STYLE DESIGNATOR KEY
HOLE DIAMETER0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
OUTSIDE DIAMETER0.625 INCHES NOMINAL
EXTERNAL PREBENT KEY LENGTH0.128 INCHES NOMINAL
EXTERNAL PREBENT KEY WIDTH0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.4372 INCHES NOMINAL
OVERALL DISTANCE INCLUDING KEYS0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM
MATERIAL THICKNESS0.0338 INCHES MINIMUM AND 0.0538 INCHES MAXIMUM
EXTERNAL PREBENT KEY ANGLE90.0 DEGREES NOMINAL
SPECIAL FEATURESINSIDE DIA HAS A 12-POINT HOLE SHAPE