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 6645-00-019-0554
NSN 6150-01-027-0798
NSN 6145-00-959-4489
NSN 5910-00-153-3491
NSN 6135-01-426-4962
NSN 2925-01-629-9416
NSN 6145-01-634-0388
NSN 5905-01-076-4045
NSN 5915-00-288-0071
NSN 6105-00-549-2668
NSN 5945-01-403-2800
NSN 5920-01-229-8645