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National Stock Number:
5310-00-947-4206
Federal Supply Class:
5310
National Item Identification Number:
009474206
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:
| 65102-11082-102 | 10630 | ANILLO INDUSTRIES LLC | | 65102-11082-102 | 55345 | ALAMO AIRCRAFT, LTD. | | 65102-11082-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | AS FABRICATED | | HOLE DIAMETER | 3.500 INCHES NOMINAL | | OVERALL DIAMETER | 5.850 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 631 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 90.0 MICROINCHES OUTER | | SURFACE FINISH | 90.0 MICROINCHES BOTTOM | | SURFACE FINISH | 90.0 MICROINCHES INNER | | SURFACE FINISH | 90.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.080 INCHES NOMINAL |
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