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 6220-00-021-9040
NSN 6220-00-022-9700
NSN 6645-00-057-3499
NSN 5945-00-174-0810
NSN 6220-00-814-1598
NSN 6620-00-197-5130
NSN 5925-01-394-5365
NSN 6650-01-424-0974
NSN 6620-00-257-2783
NSN 6650-00-395-3089
NSN 6610-01-128-2428
NSN 5950-01-360-4126