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 6220-00-707-5044
NSN 6110-00-650-4441
NSN 5910-00-598-3674
NSN 5975-01-073-8611
NSN 5925-00-581-1931
NSN 6645-01-281-7254
NSN 2925-01-113-6904
NSN 5835-01-582-6045
NSN 6220-00-243-2288
NSN 6135-00-557-8874
NSN 5905-01-494-4398
NSN 5905-01-204-1361