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National Stock Number:
5310-00-595-5996
Federal Supply Class:
5310
National Item Identification Number:
005955996
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:
| FFW92TYPEAGRADE2CLASSF | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.427 INCHES MINIMUM AND | | 0.447 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.655 INCHES MINIMUM AND | | 0.656 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.0139 INCHES MINIMUM AND | | 0.0179 INCHES MAXIMUM | | NONDEFINITIVE SPEC/STD DATA | A TYPE AND | | 1 GRADE AND | | F STYLE | | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY OD,AS MODIFIED BY THK | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFW92TYPEAGRADE2CLASSF |
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