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National Stock Number:
5310-00-580-3813
Federal Supply Class:
5310
National Item Identification Number:
005803813
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:
| 270499 | 00405 | ALLIANT TECHSYSTEMS INC | | 270499 | 04861 | COOPER INDUSTRIES INC COOPER PETROLEUM EQUIPMENT DIV SUNNYVALE OPERATION | | 270499 | 0MVU3 | NORTHROP GRUMMAN INNOVATION SYSTEMS LLC | | 270499 | 32448 | A.W. MACK MANUFACTURING CO. INC. | | 270499 | 56055 | PRECISION SPEED MANUFACTURING, LLC | | 270499 | 61062 | COMET MFG CO INC | | 270499 | 77445 | RTX CORPORATION | | 270499 | 97139 | THE SLABE MACHINE PRODUCTS LLC | | 270499 | J1695 | KITO MFG CO. LTD | | 270499 | S0254 | KITO MFG CO. LTD |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.342 INCHES MINIMUM AND 0.349 INCHES MAXIMUM | | OVERALL DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5648 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 316 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES INNER | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE FINISH | 90.0 MICROINCHES OUTER | | THICKNESS | 0.125 INCHES NOMINAL |
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