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 5975-01-657-0529
NSN 5925-00-596-2146
NSN 5996-00-292-5394
NSN 6240-01-649-6937
NSN 5945-01-137-9810
NSN 6150-00-525-3007
NSN 5920-01-492-0420
NSN 6685-01-462-5046
NSN 5990-00-772-9277
NSN 6135-01-436-7733
NSN 6610-01-195-3497
NSN 5985-01-032-1674