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National Stock Number:
5310-01-582-1978
Federal Supply Class:
5310
National Item Identification Number:
015821978
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:
| 420-30C01 | 8M585 | GOMACO CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.469 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A992 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLAT WASHER .438 W | | MATERIAL | STEEL OVERALL | | OVERALL DIAMETER | 1.469 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | USED ON ENGINE ASSEMBLY C9-275 HP, P/N 905346-021 |
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