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National Stock Number:
5310-00-737-8303
Federal Supply Class:
5310
National Item Identification Number:
007378303
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:
| 12344J | 56442 | DIAMOND REO TRUCK CO | | 7378303 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 8B2266 | 95201 | NAPCO INTERNATIONAL LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 55.0 ROCKWELL C NOMINAL | | HOLE DIAMETER | 2.000 INCHES MINIMUM AND 2.002 INCHES MAXIMUM | | OVERALL DIAMETER | 3.125 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-640,FS1015 /CANC/ FED SPEC 1ST MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1009 AND STEEL COMP 1015 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 40.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.150 INCHES MINIMUM AND 0.152 INCHES MAXIMUM |
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