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National Stock Number:
5310-01-570-7579
Federal Supply Class:
5310
National Item Identification Number:
015707579
Description:
WASHER,FLAT
Detail:
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.
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Manufacturer Information:
| 6437550 | 6W728 | BAE SYSTEMS SURVIVABILITY SYSTEMS LLC | | 6437550-02M1 | 076M6 | AMZ ALABAMA INC. | | 6437550-02M1 | 11083 | CATERPILLAR INC | | 6437550-02M1 | 54786 | BAE SYSTEMS LAND & ARMAMENTS L.P. | | 6437550-02M1 | 6W728 | BAE SYSTEMS SURVIVABILITY SYSTEMS LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.375 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F436, TABLE 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, FLAT, HARDENED, TY1, 5/16 IN USS | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.875 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SAE-AMS2434 ASSN STD SINGLE TREATMENT RESPONSE OVERALL AND WSS -19G5 A-4 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | TIN OVERALL AND ZINC OVERALL | | THICKNESS | 0.051 INCHES MINIMUM AND 0.104 INCHES MAXIMUM |
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