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 2925-00-678-5502
NSN 6650-00-116-7439
NSN 6685-01-327-3286
NSN 5905-01-400-5968
NSN 5945-01-109-6334
NSN 6220-00-281-9206
NSN 5855-01-083-9053
NSN 5835-01-284-5689
NSN 5930-01-230-5616
NSN 5895-00-932-1577
NSN 5895-01-496-1101
NSN 6685-01-649-3144