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National Stock Number:
5310-01-508-1303
Federal Supply Class:
5310
National Item Identification Number:
015081303
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:
| 6393800 | 31442 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 6393800 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | BLACK OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 2.870 INCHES NOMINAL | | OVERALL DIAMETER | 6.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM D4181, POM 112 OR POM 210 MIL SPEC 1ST MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC ACETAL OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | WASHER, THRUST | | THICKNESS | 0.024 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
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