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National Stock Number:
5310-01-355-9231
Federal Supply Class:
5310
National Item Identification Number:
013559231
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:
| 4D0053-3A-2 | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC | | 4D0053-3A8-2 | 10630 | ANILLO INDUSTRIES INC | | 4D0053-3A8-2 | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC | | 4D0053-3A8-2 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OVERALL OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL OR CHROMATE OVERALL | | THICKNESS | 0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM |
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