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National Stock Number:
5310-01-353-8283
Federal Supply Class:
5310
National Item Identification Number:
013538283
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:
| NAS1401-12D5 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| HOLE DIAMETER | 0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/4,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/5,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | SPECIAL FEATURES | RADIUS ONE SIDE OF ONE END 0.160 IN.,RADIUS ALL CORNERS 0.060 IN. | | WIDTH ACROSS FLATS | 1.230 INCHES MINIMUM AND 1.290 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OR CHROMATE OVERALL | | THICKNESS | 0.160 INCHES NOMINAL |
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