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National Stock Number:
5310-00-941-9641
Federal Supply Class:
5310
National Item Identification Number:
009419641
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:
| 491755 | 00994 | COLUMBUS JACK CORPORATION | | 491755 | 02708 | AGE LOGISTICS CORPORATION | | 491755 | 77445 | RTX CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM | | OVERALL DIAMETER | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY X-750 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE FINISH | 90.0 MICROINCHES OUTER | | SURFACE FINISH | 90.0 MICROINCHES INNER | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM |
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