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Part Number:
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Item Name:
WASHER , RECESSED

Definition:

A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.

CAGE Information

Code Company
82796 COLTEC INDUSTRIES INC. DBA FAIRBANKS

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
ABKV OUTSIDE DIAMETER 0.560 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
ABKV OUTSIDE DIAMETER 0.560 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
ABPX MATERIAL THICKNESS 0.125 INCHES NOMINAL
ABMD RECESS DIAMETER 0.561 INCHES NOMINAL
MATT MATERIAL COPPER ALLOY OVERALL
CSTM RECESS ANGLE 30.0 DEGREES NOMINAL
AAUB HOLE DIAMETER 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYL STYLE DESIGNATOR RECESS

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