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National Stock Number:
5310-01-263-0854
Federal Supply Class:
5310
National Item Identification Number:
012630854
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:
| 12354884 | 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 | 0.880 INCHES MINIMUM AND 0.940 INCHES MAXIMUM | | OVERALL DIAMETER | 1.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/4,H111 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/5,H111 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/7,H32 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 5083 OR ALUMINUM ALLOY 5086 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.340 INCHES NOMINAL |
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