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Item Name:
WASHER , CONCAVE

Definition:

A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.

CAGE Information

Code Company
45153 HAMILTON SUNDSTRAND CORPORATION DIV

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 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
STYL STYLE DESIGNATOR CONCAVE
ABPX MATERIAL THICKNESS 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM
ABKV OUTSIDE DIAMETER 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
MATT MATERIAL STEEL COMP 304 OVERALL
ABGG RADIUS 0.600 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL

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