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National Stock Number:
5310-01-545-8199
Federal Supply Class:
5310
National Item Identification Number:
015458199
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:
| 91545A143 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.262 INCHES NOMINAL | | OVERALL DIAMETER | 0.500 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLAT WASHER | | MATERIAL | PLASTIC NYLON OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | MADE OF WEAR AND CHEMICAL RESISTANT NYLATRON,LUBRICANT IMPREGNATED, LOW FRICTION, NONABRASIVE,400 DEG F MAX TEMP. | | THICKNESS | 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM |
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