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National Stock Number:
5310-00-250-2146
Federal Supply Class:
5310
National Item Identification Number:
002502146
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:
| 3238239 | 55380 | HATCH & KIRK, INC. | | 3238239 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.531 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-20085 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PAPER OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 2.188 INCHES NOMINAL | | THICKNESS | 0.016 INCHES NOMINAL |
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