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 5915-01-565-7285
NSN 6130-01-027-4037
NSN 5930-01-168-1495
NSN 5920-00-413-3341
NSN 6220-01-186-4500
NSN 5910-01-605-1469
NSN 5996-01-275-6693
NSN 5910-00-759-1002
NSN 5935-01-466-0638
NSN 5975-01-371-5311
NSN 5965-01-629-5800
NSN 6645-01-242-9240