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National Stock Number:
5310-01-482-0103
Federal Supply Class:
5310
National Item Identification Number:
014820103
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:
| 122-4472567 PC NO. 4 | 81898 | SUPERVISOR OF SHIPBUILDING CONVERSION AND REPAIR USN | | 4472567 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 4472567 PC NO. 4 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.188 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-465,ALLOY 630 OR 642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 630 OR COPPER ALLOY 642 OVERALL | | SPECIAL FEATURES | STYLE UNIQUE;TWO HOLES DRILLED & COUNTERSUNK ON SURFACE 2.188 IN NOM APART;ONE EDGE 1.750 IN NOM RADIUS FROM CENTER HOLE;SECOND EDGE 1.250 IN NOM RADIUS FROM CENTER HOLE | | SURFACE FINISH | 125.0 MICROINCHES BOTTOM | | SURFACE FINISH | 125.0 MICROINCHES TOP | | THICKNESS | 0.125 INCHES NOMINAL |
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