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 5996-01-332-9607
NSN 5960-00-040-9989
NSN 6610-01-160-8815
NSN 5990-00-165-1809
NSN 6610-00-089-6950
NSN 2925-01-446-6523
NSN 5935-01-585-8956
NSN 5998-01-444-6133
NSN 5965-00-015-7408
NSN 5855-01-244-9785
NSN 5895-01-118-2231
NSN 6620-01-257-6483