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 6620-00-226-2285
NSN 6135-00-702-2772
NSN 5950-00-225-8447
NSN 5990-01-512-9129
NSN 4140-01-461-2350
NSN 6645-00-547-4388
NSN 5835-01-078-6126
NSN 6685-00-816-0656
NSN 6610-00-506-1977
NSN 5950-00-293-8260
NSN 5996-00-070-3983
NSN 6610-01-425-1523