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National Stock Number:
5310-00-290-1434
Federal Supply Class:
5310
National Item Identification Number:
002901434
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:
| 203099 | 02978 | RENK AMERICA LLC | | 5230935 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | J1613 | 03481 | BFGOODRICH CO THE AEROSPACE DIV ENGINEERED POLYMER PRODUCTS |
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Techincal Specification:
| MATERIAL | RUBBER SYNTHETIC OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.969 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.812 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.172 INCHES NOMINAL | | SPECIAL FEATURES | THREE DEG CHAMFER ON ONE INSIDE EDGE |
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