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 5985-01-519-5952
NSN 5930-00-935-8659
NSN 5915-00-943-8530
NSN 6620-01-271-0711
NSN 5905-00-936-9153
NSN 5998-01-188-7217
NSN 6620-01-224-9007
NSN 5990-01-389-1196
NSN 5920-00-946-5001
NSN 6645-01-514-0236
NSN 6685-01-384-8452
NSN 5945-01-528-8295