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 5910-01-527-4747
NSN 5935-01-634-0668
NSN 7035-00-238-3662
NSN 7035-01-434-1986
NSN 4140-01-202-7853
NSN 6620-01-339-9404
NSN 5930-00-284-9056
NSN 5985-01-464-0410
NSN 5998-01-123-8753
NSN 6145-00-809-9532
NSN 5915-01-072-3312
NSN 5925-00-109-2232