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.
Classification: Copper washers including spring washers not threaded
NSN 5920-01-503-1596
NSN 6320-01-607-1491
NSN 5996-00-969-6422
NSN 6220-01-359-3993
NSN 5985-01-359-7745
NSN 5950-00-476-0815
NSN 5930-00-275-5148
NSN 6110-00-022-2555
NSN 5925-01-579-1753
NSN 6130-01-524-9052
NSN 5950-00-905-6887
NSN 5835-00-922-1263