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 5945-01-352-8916
NSN 6150-00-383-1214
NSN 6685-01-237-2562
NSN 6650-01-167-1311
NSN 5920-00-726-2006
NSN 5965-01-550-5587
NSN 7035-01-441-8363
NSN 5905-01-387-4882
NSN 5835-00-143-4153
NSN 5990-01-216-1276
NSN 5975-00-486-6004
NSN 5996-01-190-9982