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 6105-01-474-3826
NSN 5996-01-213-3894
NSN 6240-00-973-8390
NSN 6320-00-405-2348
NSN 5950-00-959-2968
NSN 5990-01-357-6175
NSN 6320-01-194-1253
NSN 5910-01-297-7201
NSN 6645-00-879-9941
NSN 6320-00-115-0883
NSN 6685-00-384-9463
NSN 5910-00-939-5737