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National Stock Number:
5310-00-168-2890
Federal Supply Class:
5310
National Item Identification Number:
001682890
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:
| 560759 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | M1L-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.318 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.080 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.088 INCHES MINIMUM AND | | 0.100 INCHES MAXIMUM | | HARDNESS RATING | 72.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND | | 76.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM | | SPECIAL FEATURES | 0.125 IN. RADIUS ON OUTER EDGE OF BOTH BEARING SURFACES | | HEAT TREATMENT | AS FABRICATED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 73030 | | DESIGN CONTROL REFERENCE | 560759 |
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