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National Stock Number:
5310-01-121-1705
Federal Supply Class:
5310
National Item Identification Number:
011211705
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:
| 203-4678531 ITEM 14 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 518-4678445 ITEM 11 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 87696-1624 ITEM 11 | 96169 | ELECTRIC BOAT CORPORATION | | 87696-1624ITEM1 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.280 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.500 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.120 INCHES NOMINAL | | SURFACE FINISH | 32.0 MICROINCHES TOP | | 32.0 MICROINCHES BOTTOM |
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