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National Stock Number:
5310-01-363-9914
Federal Supply Class:
5310
National Item Identification Number:
013639914
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:
| 04-0003 ITEM 53 | 20019 | WARD LEONARD CT LLC | | SPP50-0019 | 20019 | WARD LEONARD CT LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.615 INCHES MINIMUM AND 1.670 INCHES MAXIMUM | | OVERALL DIAMETER | 3.490 INCHES MINIMUM AND 3.545 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | FF-W-92 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B-633 TY2 CLFE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 0.153 INCHES MINIMUM AND 0.213 INCHES MAXIMUM |
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