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National Stock Number:
5310-01-501-2239
Federal Supply Class:
5310
National Item Identification Number:
015012239
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:
| 211032836 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402201 FIND 26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402201 ITEM 26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402201-26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402202 FIND 26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402202 ITEM 26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402202-26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402243 ITEM 1 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402243-1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.550 INCHES MINIMUM AND 1.555 INCHES MAXIMUM | | MATERIAL | PLASTIC ACETAL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 4.000 INCHES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | THICKNESS | 0.233 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
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