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National Stock Number:
5310-01-466-4935
Federal Supply Class:
5310
National Item Identification Number:
014664935
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:
| 6162708 | 44114 | BAE SYSTEMS LAND & ARMAMENTS L.P. | | 6162708 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.453 INCHES NOMINAL | | OVERALL DIAMETER | 0.800 INCHES NOMINAL | | MATERIAL | STEEL COMP 4140 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | HOLE IS OFFSET | | SURFACE FINISH | 125.0 MICROINCHES BOTTOM | | SURFACE FINISH | 125.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B663,TYPE 2,SC3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 0.250 INCHES NOMINAL |
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