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 5990-01-034-0516
NSN 5960-00-790-0509
NSN 5975-00-726-3565
NSN 2925-01-138-8104
NSN 6130-01-038-7755
NSN 5999-01-212-8053
NSN 5945-00-935-6922
NSN 5910-00-227-0848
NSN 6130-01-302-7983
NSN 5950-01-115-7350
NSN 5925-01-069-6042
NSN 5945-01-416-6438