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National Stock Number:
5310-01-486-3538
Federal Supply Class:
5310
National Item Identification Number:
014863538
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:
| 123-1935 | 10639 | AVIONICS SPECIALTIES INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.500 INCHES NOMINAL | | INSIDE LEFT CORNER CHAMFER ANGLE | 120.0 DEGREES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY OVERALL | | III FSC APPLICATION DATA | NHA SLZ7971 AOA TRANSMITTER | | PERIPHERAL SHAPE STYLE | SQUARE | | PROPRIETARY CHARACTERISTICS | PACS | | SPECIAL FEATURES | THE CENTER HOLE IS BEVELED 0.312 MIN 0.315 MAX INCH 0.025 MIN 0.035 MAX INCH THK AND 0.500 INCH AT 120 DEG 0.065 THK | | WIDTH ACROSS FLATS | 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | THICKNESS | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
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