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National Stock Number:
5310-01-469-2762
Federal Supply Class:
5310
National Item Identification Number:
014692762
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:
| 372464-3 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5, T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.327 INCHES MINIMUM AND | | 0.334 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | RECTANGULAR | | LENGTH | 2.000 INCHES NOMINAL | | WIDTH ACROSS FLATS | 0.650 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.080 INCHES NOMINAL | | END CUT ANGLE | 40.0 DEGREES MINIMUM AND | | 50.0 DEGREES MAXIMUM | | SPECIAL FEATURES | 2 HOLES, ABOVE DIAMETER, SPACED 1.22 IN. BETWEEN CENTERS; 0.36 IN. TO CENTER FROM FLAT SIDE; 0.38 IN. TO CENTER FROM EACH END |
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