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 5905-00-080-1662
NSN 6135-00-110-1981
NSN 2925-00-275-1807
NSN 6220-01-127-8143
NSN 6645-01-486-4305
NSN 6320-00-539-9283
NSN 6130-01-328-6491
NSN 5998-01-626-5602
NSN 5855-01-634-0259
NSN 5985-01-323-8201
NSN 5855-01-486-0038
NSN 6685-01-496-6163