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National Stock Number:
5310-01-212-2807
Federal Supply Class:
5310
National Item Identification Number:
012122807
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:
| 502437-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 82.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 92.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM | | HOLE DIAMETER | 0.315 INCHES MINIMUM AND 0.318 INCHES MAXIMUM | | OVERALL DIAMETER | 0.480 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 304 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.015 INCHES NOMINAL |
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