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Part Number

Part Number:
NSN:
NIIN:
Item Name:
WASHER , FLAT

Definition:

A WASHER HAVING A CENTRALLY LOCATED HOLE WITH A SOLID OR LAMINATED CROSS-SECTION AND TWO FLAT PARALLEL BEARING SURFACES. THE HOLE MUST BE 75 PERCENT OR LESS THAN THE LARGEST DIMENSION AND THE BEARING SURFACE FINISH IS GREATER THAN 32 MICROINCH (0.8 MICROMETER). THE THICKNESS CANNOT EXCEED 25 PERCENT OF THE LARGEST OUTSIDE DIMENSION. WHEN THE LARGEST OUTSIDE DIMENSION IS LESS THAN 1/4 INCH OR 6MM, THE THICKNESS MUST BE 0.006 INCHES (0.15MM) OR GREATER AND FOR ITEMS 1/4 INCH (6MM) OR LARGER, THE THICKNESS MUST BE 0.016 INCHES (0.4MM) OR GREATER. THE MAXIMUM TOLERANCE IS APPLIED TO DIMENSIONS AND USED AS A DETERMINING FACTOR. ITEMS WITH SEPARABLE LAMINATION USE SHIM. FOR ITEMS FABRICATED FROM CERAMIC OR ELECTRICALLY RATED MATERIALS BY SPECIFICATION OR INDUSTRY STANDARDS USE INSULATOR (1), WASHER. EXCLUDES DISK, VALVE, GRAPHITE IMPREGNATED AND LUBRICATED ITEMS.

CAGE Information

Code Company
05869 RAYTHEON COMPANY DBA RAYTHEON

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
MATT MATERIAL COPPER ALLOY 240 OVERALL OR COPPER ALLOY 353 OVERALL OR COPPER ALLOY 342 OVERALL OR COPPER ALLOY 268 OVERALL OR COPPER ALLOY 260 OVERALL OR COPPER ALLOY 230 OVERALL OR COPPER ALLOY 11 OVERALL
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
ABMX CENTER HOLE SHAPE STYLE ROUND
ABNM THICKNESS 0.032 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-B-613,HALF-HARD FED SPEC ALL MATERIAL RESPONSES OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AAUB HOLE DIAMETER 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
ABMW PERIPHERAL SHAPE STYLE ROUND
ADAV OVERALL DIAMETER 0.700 INCHES NOMINAL
SFTT SURFACE TREATMENT NICKEL OVERALL

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