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National Stock Number:
5310-00-689-8680
Federal Supply Class:
5310
National Item Identification Number:
006898680
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:
| 6864756 | 73342 | ALLISON TRANSMISSION INC | | EU12009 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | AS FABRICATED | | HOLE DIAMETER | 0.263 INCHES MINIMUM AND 0.276 INCHES MAXIMUM | | OVERALL DIAMETER | 0.405 INCHES MINIMUM AND 0.410 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5512 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 347 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.038 INCHES MINIMUM AND 0.039 INCHES MAXIMUM |
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