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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
57526 FORD MOTOR CO

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
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
ABMX CENTER HOLE SHAPE STYLE ROUND
ADAV OVERALL DIAMETER 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM
SFTT SURFACE TREATMENT CHROMATE OVERALL
SUPP SUPPLEMENTARY FEATURES USED WITH ST7M349 AND 9M919 SEALS,CAGEC 76301
AAUB HOLE DIAMETER 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
ABMW PERIPHERAL SHAPE STYLE ROUND
ABNM THICKNESS 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM
MATT MATERIAL ALUMINUM ALLOY 6061 OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

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