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National Stock Number:
5310-00-679-4574
Federal Supply Class:
5310
National Item Identification Number:
006794574
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:
| 10860123 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.639 INCHES MINIMUM AND 0.648 INCHES MAXIMUM | | OVERALL DIAMETER | 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TT-P-636 FED SPEC 1ST TREATMENT RESPONSE OR TT-E-529 FED SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PRIMER AND PAINT OVERALL | | THICKNESS | 0.086 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
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