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National Stock Number:
5310-00-054-0468
Federal Supply Class:
5310
National Item Identification Number:
000540468
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:
| AMS-QQ-A-250 | 0U583 | SAE INTERNATIONAL | | AMS-QQ-A-250 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AMS-QQ-A-250/5A | 0U583 | SAE INTERNATIONAL | | AMS-QQ-A-250/5A | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | FF-W-92BTYA,GR1,CLASS D | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | S6110-34204-2 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM | | OVERALL DIAMETER | 0.927 INCHES MINIMUM AND 0.947 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A362,TEMPER T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | THICKNESS | 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM |
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