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 6620-00-969-3972
NSN 6135-01-643-7496
NSN 6685-00-217-9010
NSN 6610-00-377-7956
NSN 5945-00-916-9071
NSN 5945-00-082-1195
NSN 5965-00-898-1356
NSN 6320-00-977-3930
NSN 6620-01-517-0014
NSN 6650-01-360-3848
NSN 6610-01-597-7175
NSN 5835-00-233-6327