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Part Number:
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Item Name:
WASHER , CONVEX

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 RAISED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONCAVE. EXCLUDES BEARING, WASHER THRUST.

CAGE Information

Code Company
78286 SIKORSKY AIRCRAFT CORPORATION

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 1.800 INCHES NOMINAL
CQFM HARDNESS RATING 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM
AAUB HOLE DIAMETER 1.150 INCHES NOMINAL
MATT MATERIAL STEEL COMP 440C OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION SS8435 MFR REF SINGLE TREATMENT RESPONSE OVERALL
ABPX MATERIAL THICKNESS 0.080 INCHES NOMINAL
STYL STYLE DESIGNATOR CONVEX
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL

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