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National Stock Number: 5310-00-509-9289
Federal Supply Class: 5310
National Item Identification Number: 005099289
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:
4331 | 79575 | WICO-PRESTOLITE CO THE DIV OF ELTRA CORP |
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Techincal Specification:
CENTER HOLE SHAPE STYLE | ROUND | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | HOLE DIAMETER | 1.125 INCHES MINIMUM AND 1.187 INCHES MAXIMUM | OVERALL DIAMETER | 1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | C-F-206 TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | WOOL COMP 9R4 OVERALL | PERIPHERAL SHAPE STYLE | ROUND | THICKNESS | 0.217 INCHES MINIMUM AND 0.283 INCHES MAXIMUM |
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