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Item Name:
WASHER , LOCK

Definition:

A WASHER WHICH IS USUALLY ROUND WITH A CENTRALLY LOCATED HOLE. ITS EDGES AND TWO BEARING SURFACES ARE SO DESIGNED THAT APPLIED PRESSURE BRINGS INTO PLAY THE SPRING TENSION AND/OR FRICTIONAL LOCKING PRINCIPLE WHICH MATERIALLY RESISTS ANY TENDENCY TOWARD TURNING. IT MAY BE MADE OF ONE OR TWO PIECES

CAGE Information

Code Company
78189 ITW SHAKEPROOF AUTOMOTIVE PRODUCTS

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
AAUB HOLE DIAMETER 0.383 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
AAUB HOLE DIAMETER 0.383 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
ABPX MATERIAL THICKNESS 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM
MATT MATERIAL STEEL OVERALL
CRSQ COUNTERSINK ANGLE 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
STYL STYLE DESIGNATOR COUNTERSINK EXTERNAL TEETH
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT CADMIUM OVERALL
ABKV OUTSIDE DIAMETER 0.765 INCHES NOMINAL

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