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National Stock Number (NSN) Output Data

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.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
6242951-416L 53711 A 3 2 E KZ

CAGE Information

Code Company
53711 NAVAL SEA SYSTEMS COMMAND

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
ADAV OVERALL DIAMETER 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-81751,TYPE 1,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
ABMX CENTER HOLE SHAPE STYLE ROUND
ABNM THICKNESS 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
ABMW PERIPHERAL SHAPE STYLE ROUND
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5059 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-5059 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR AMS 5510 ASSN STD 5TH MATERIAL RESPONSE OVERALL OR AMS 5512 ASSN STD ALL MATERIAL RESPONSES OVERALL
HUES COLOR GRAY OVERALL
MATT MATERIAL STEEL COMP 301 OVERALL OR STEEL COMP 316 OVERALL OR STEEL COMP 321 OVERALL OR STEEL COMP 302 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 347 OVERALL
AAUB HOLE DIAMETER 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM

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