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 5990-00-067-6791
NSN 5915-01-272-9593
NSN 5855-01-136-9532
NSN 6135-01-034-5202
NSN 5935-01-202-1863
NSN 5910-00-839-8196
NSN 5835-01-645-2892
NSN 2925-01-633-4048
NSN 5998-01-273-0124
NSN 6240-01-102-1555
NSN 5945-01-108-2865
NSN 5965-01-618-8346