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National Stock Number:
5310-01-574-4388
Federal Supply Class:
5310
National Item Identification Number:
015744388
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:
| 91117A219 | 39428 | MCMASTER-CARR SUPPLY CO | | 91117A219 | 97852 | STAR STAINLESS SCREW CO |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | CENTER HOLE WIDTH | 0.406 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | WIDTH | 2.000 INCHES NOMINAL | | LENGTH | 2.000 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.113 INCHES MINIMUM AND | | 0.137 INCHES MAXIMUM | | END CUT ANGLE | 90.0 DEGREES NOMINAL | | ASBESTOS CONTENT PERCENTAGE | 0.0 NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | JUMBO (THICK) FLAT WASHER |
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