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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
15653 ALCOA GLOBAL FASTENERS INC.

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
STYL STYLE DESIGNATOR CONCAVE
ABGG RADIUS 0.180 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
MATT MATERIAL STEEL COMP 630 OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5643,COND H-1025 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ABMH RECESS DEPTH 0.035 INCHES NOMINAL
ABPX MATERIAL THICKNESS 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AAUB HOLE DIAMETER 0.235 INCHES NOMINAL
ABKV OUTSIDE DIAMETER 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM

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