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 |
19200 |
U S ARMY ARMAMENT RESEARCH & DEVELOP |
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
ADAV |
OVERALL DIAMETER |
1.052 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
MATT |
MATERIAL |
STEEL COMP 1020 OVERALL |
AAGR |
CROSS-SECTIONAL SHAPE STYLE |
RECTANGULAR |
ABMX |
CENTER HOLE SHAPE STYLE |
ROUND |
CQFM |
HARDNESS RATING |
45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
AAUB |
HOLE DIAMETER |
0.640 INCHES MINIMUM AND 0.645 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-640,CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
ABMW |
PERIPHERAL SHAPE STYLE |
ROUND |
HUES |
COLOR |
BLACK OVERALL |
SFTT |
SURFACE TREATMENT |
OXIDE FILM OVERALL |
ABNM |
THICKNESS |
0.031 INCHES NOMINAL |
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