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National Stock Number:
5310-01-535-2382
Federal Supply Class:
5310
National Item Identification Number:
015352382
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:
| 17-2-0848-1 | 81337 | W1D1 NATICK SOLDIER CENTER | | 95630A256 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.390 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.875 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.057 INCHES MINIMUM AND | | 0.067 INCHES MAXIMUM | | COLOR | WHITE OVERALL | | SUPPLEMENTARY FEATURES | HIGH HEAT AND CHEMICAL RESISTANCE AND THE LOWEST COEFFIVIENT OF ALL THERMOPLASTICS. THESE WASHERS HAVE EXCELLENT DIMENSIONAL STABILITY AND ARE SUITABLE FOR USE UO TO 500 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, POLYTETRAFLUOROETHYLENE |
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