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National Stock Number:
5310-01-499-4511
Federal Supply Class:
5310
National Item Identification Number:
014994511
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:
| 98019A325 | 2V507 | MCMASTER-CARR SUPPLY COMPANY |
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Techincal Specification:
| MATERIAL | STEEL COMP 301 OR | | STEEL COMP 302 OR | | STEEL COMP 303 OR | | STEEL COMP 304 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.190 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.380 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.040 INCHES MINIMUM AND | | 0.070 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER FLAT |
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