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Part Number:
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Item Name:
WASHER , KEY

Definition:

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.

CAGE Information

Code Company
53711 NAVAL SEA SYSTEMS COMMAND

Federal Supply Class

Title

NUTS AND WASHERS

Inclusions:

INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.

Exclusions:

EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ABMR INTERNAL KEY QUANTITY 1
ABMR INTERNAL KEY QUANTITY 1
ABLK INTERNAL PREBENT KEY WIDTH 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
ABLB INTERNAL PREBENT KEY LENGTH 0.234 INCHES NOMINAL
ABKV OUTSIDE DIAMETER 1.875 INCHES NOMINAL
ABPX MATERIAL THICKNESS 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
STYL STYLE DESIGNATOR KEY
MATT MATERIAL STEEL OVERALL
HEAT HEAT TREATMENT AS FABRICATED
SFTT SURFACE TREATMENT PHOSPHATE OVERALL
AAUB HOLE DIAMETER 1.252 INCHES MINIMUM AND 1.254 INCHES MAXIMUM

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