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 6240-01-505-0030
NSN 5985-00-798-8789
NSN 5855-00-477-9943
NSN 6685-00-216-6676
NSN 6150-01-215-1529
NSN 5965-00-706-7005
NSN 6320-01-191-6717
NSN 6650-01-329-6350
NSN 5985-01-132-1304
NSN 5855-01-070-4072
NSN 6110-01-373-1220
NSN 6650-01-323-5407