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National Stock Number:
5310-00-275-1311
Federal Supply Class:
5310
National Item Identification Number:
002751311
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:
| 1120-404PCR3 | 81316 | PORTSMOUTH NAVAL SHIPYARD | | 11FM1B0008-0005F | 10613 | PENTAIR PUMP GROUP, INC. | | 11FM1B008 0005F | 10613 | PENTAIR PUMP GROUP, INC. | | 11FM1B5 | 10613 | PENTAIR PUMP GROUP, INC. | | 212-2409-158849ALT2PC17 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 404-2409-69963PCR3 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 555-59M6459PCR3 | 14921 | CRAMP SHIPBUILDING AND DRYDOCK CO | | FF-W-92B | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.656 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY A OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.500 INCHES NOMINAL | | THICKNESS | 0.125 INCHES NOMINAL |
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