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National Stock Number:
5310-00-849-7858
Federal Supply Class:
5310
National Item Identification Number:
008497858
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:
| 00581 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA | | 114D3044-2 | 77272 | THE BOEING COMPANY | | 114D3044-2 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM | | OVERALL DIAMETER | 0.800 INCHES MINIMUM AND 0.820 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 416 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | BOTH SURFACES CHAMFERED ON OUTSIDE EDGE 0.118 INCH BY 7 DEGREES | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM |
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