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National Stock Number:
5310-01-251-6372
Federal Supply Class:
5310
National Item Identification Number:
012516372
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:
| 930088-125 | 1L160 | SUPERIOR WASHER & GASKET CORP. | | 930088-125 | 80249 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | OVERALL DIAMETER | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 268 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL OVERALL | | THICKNESS | 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM |
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