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National Stock Number:
5310-00-235-3681
Federal Supply Class:
5310
National Item Identification Number:
002353681
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:
| 11687455 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE | | ES138-323-515K | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.318 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD 1ST MATERIAL RESPONSE AND 66 FED STD 2ND MATERIAL RESPONSE AND QQ-S-698 FED SPEC 3RD MATERIAL RESPONSE OVERALL | | OVERALL DIAMETER | 0.515 INCHES NOMINAL | | MATERIAL | STEEL COMP 1010 OR STEEL COMP 1025 OR STEEL COMP 1020 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | USED ON ARMT SUBSYS XM28/XM28E1 | | SURFACE TREATMENT | CADMIUM AND ZINC OVERALL | | THICKNESS | 0.024 INCHES NOMINAL |
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