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 5990-01-412-9020
NSN 6240-00-774-6116
NSN 7035-01-083-0282
NSN 5945-00-284-7312
NSN 6130-01-167-2990
NSN 5930-01-152-5070
NSN 6105-01-611-9920
NSN 5965-01-160-9819
NSN 5985-00-187-0538
NSN 6110-01-504-9421
NSN 5915-00-203-2859
NSN 4140-00-946-2705