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National Stock Number:
5310-00-288-2094
Federal Supply Class:
5310
National Item Identification Number:
002882094
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:
| 16981 | 27315 | MORRIS MATERIAL HANDLING, INC. | | 16981 | 7PZX0 | FAIRBANKS MORSE, LLC | | 16981 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE | | 16981 | 95201 | NAPCO INTERNATIONAL LLC | | P16981A | 95201 | NAPCO INTERNATIONAL LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.765 INCHES MINIMUM AND 0.770 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 510 OVERALL | | OVERALL DIAMETER | 5.240 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 50.0 MICROINCHES TOP | | SURFACE FINISH | 50.0 MICROINCHES BOTTOM | | THICKNESS | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
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