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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
00088 ROYAL OAK GAGE 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
AAUB HOLE DIAMETER 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
AAUB HOLE DIAMETER 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE 51613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATT MATERIAL STEEL CORROSION RESISTING OVERALL
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
ABMX CENTER HOLE SHAPE STYLE ROUND
ABNM THICKNESS 0.059 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
FEAT SPECIAL FEATURES CHAMFER 43.0 TO 47.0 DEG BY 0.020 TO 0.040 IN. BOTH ENDS
ABMW PERIPHERAL SHAPE STYLE ROUND
ADAV OVERALL DIAMETER 0.746 INCHES MINIMUM AND 0.748 INCHES MAXIMUM
CQFM HARDNESS RATING 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM

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