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National Stock Number:
5310-01-312-3370
Federal Supply Class:
5310
National Item Identification Number:
013123370
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:
| 290789 PIECE 6 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.7812 INCHES NOMINAL | | OVERALL DIAMETER | 1.312 INCHES NOMINAL | | MATERIAL | RUBBER CHLOROPRENE CLASS CR OVERALL OR PLASTIC PHENOLIC OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | NEOPRENE MATL PREFERRED; OPTIONAL PHENOLIC MATL TYPE FBJ OR FBM MAY BE LAMINATED | | THICKNESS | 0.125 INCHES NOMINAL |
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