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National Stock Number:
5310-01-595-9792
Federal Supply Class:
5310
National Item Identification Number:
015959792
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:
| 03316-03 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA | | 274011 | 24114 | MIRION TECHNOLOGIES (CANBERRA), INC. | | 93852A102 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | BLANK RECTANGULAR | | HOLE DIAMETER | 0.312 INCHES NOMINAL | | OVERALL DIAMETER | 0.750 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | 18-8 STAINLESS STEEL USS STANDARD WASHER | | MATERIAL | STEEL COMP 302 OVERALL | | SPECIAL FEATURES | ALSO KNOWN AS TYPE A WASHER FOR 1/4 INCH SCREW SIZE | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.050 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
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