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National Stock Number:
5310-99-739-6438
Federal Supply Class:
5310
National Item Identification Number:
997396438
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:
| 1541-1243 | K1464 | GOODRICH CONTROL SYSTEMS LTD T/A GOODRICH ENGINE CONTROL SYSTEMS | | 1541-1243 | U4287 | ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CRITICALITY CODE JUSTIFICATION | AAUB AND ABNM AND ADAV AND ABNM AND ADAV | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.1614 INCHES MINIMUM AND 0.1772 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DFSM 4080 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.3347 INCHES MINIMUM AND 0.3425 INCHES MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.0591 INCHES MINIMUM AND 0.0669 INCHES MAXIMUM |
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