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 |
| 98897 |
LOCKHEED MARTIN CORPORATION DBA LOCK |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CQFM |
HARDNESS RATING |
81.0 ROCKWELL H MINIMUM AND 91.0 ROCKWELL H MAXIMUM |
| AAGR |
CROSS-SECTIONAL SHAPE STYLE |
RECTANGULAR |
| MATT |
MATERIAL |
ALUMINUM ALLOY 5052 OVERALL |
| ABMX |
CENTER HOLE SHAPE STYLE |
ROUND |
| AAUB |
HOLE DIAMETER |
0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM |
| ABNM |
THICKNESS |
0.032 INCHES NOMINAL |
| ABMW |
PERIPHERAL SHAPE STYLE |
ROUND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-A-318,O FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ADAV |
OVERALL DIAMETER |
0.625 INCHES NOMINAL |
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