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National Stock Number:
5310-01-363-0739
Federal Supply Class:
5310
National Item Identification Number:
013630739
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:
| 206430 PC 10 | 43689 | HUNTINGTON INGALLS INC | | 206430 PC 10 | 53711 | NAVAL SEA SYSTEMS COMMAND | | SY/97-25-107 | 43689 | HUNTINGTON INGALLS INC | | SY/97-25-107 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 206430 PC. NO. | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| HOLE DIAMETER | 0.438 INCHES NOMINAL | | OVERALL DIAMETER | 2.875 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 464 OVERALL | | THICKNESS | 0.125 INCHES NOMINAL |
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