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National Stock Number:
5310-01-615-0643
Federal Supply Class:
5310
National Item Identification Number:
016150643
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:
| 91434A155 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASME B18.22.1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ENAMEL SEMIGLOSS OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BLACK LUSTER COATED MFR REF SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.40625 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.8125 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.05 INCHES MINIMUM AND | | 0.08 INCHES MAXIMUM | | COLOR | BLACK OVERALL | | SPECIAL FEATURES | BLACK-LUSTER FINISH PROVIDES SUPERIOR CORROSION RESISTANCE AND 500 HOURS OF SALT SPRAY RESISTANCE IAW ASTM B117 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BLACK-LUSTER-COATED STEEL SAE STANDARD WASHER |
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