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National Stock Number:
5310-00-050-9253
Federal Supply Class:
5310
National Item Identification Number:
000509253
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:
| G302439-3 | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING | | G302439-3 | 56540 | ASSOCIATED AIRCRAFT MANUFACTURING & SALES, INC. | | G302439-3 | 98255 | DRS SUSTAINMENT SYSTEMS INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM | | OVERALL DIAMETER | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC 1ST MATERIAL RESPONSE AND MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL CORROSION RESISTING OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.016 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
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