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National Stock Number:
5310-00-038-7947
Federal Supply Class:
5310
National Item Identification Number:
000387947
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:
| 100168-58 | 79318 | MEGGITT NORTH HOLLYWOOD INC | | 876456-00 | 32345 | DEFENSE REDUCTION AGENCY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059,FULL HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 301 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.675 INCHES MINIMUM AND 0.680 INCHES MAXIMUM | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO.5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM |
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