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 6650-01-633-9147
NSN 5905-01-590-3957
NSN 6105-00-456-0920
NSN 5996-01-385-0884
NSN 5990-00-118-8953
NSN 5925-01-166-5671
NSN 5905-01-660-6789
NSN 6645-01-556-5263
NSN 6685-01-453-7894
NSN 5998-00-138-7845
NSN 5998-00-920-0302
NSN 5925-00-929-7829