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 4140-01-399-8527
NSN 7035-01-254-3044
NSN 6220-00-053-1807
NSN 5975-00-548-9760
NSN 6105-00-222-4762
NSN 6610-01-184-3016
NSN 6220-01-179-6242
NSN 4140-01-565-0979
NSN 6320-01-100-7554
NSN 6320-01-487-0336
NSN 5985-00-802-2411
NSN 5920-00-636-0679