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National Stock Number: 5310-01-487-2772
Federal Supply Class: 5310
National Item Identification Number: 014872772
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:
77C959818 | 03538 | LOCKHEED MARTIN CORPORATION | 77C959818P001 | 03538 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
CENTER HOLE SHAPE STYLE | ROUND | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | HOLE DIAMETER | 0.568 INCHES NOMINAL | OVERALL DIAMETER | 0.968 INCHES NOMINAL | MATERIAL | GLASS OVERALL | PERIPHERAL SHAPE STYLE | ROUND | SPECIAL FEATURES | MATERIAL HAS GLASS FIBER BASE, EPOXY RESIN, TYPE GEE PER MIL-I-2476812 | THICKNESS | 0.055 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
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