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 2925-01-444-2061
NSN 6145-01-390-8474
NSN 5950-01-442-6188
NSN 5965-01-138-0707
NSN 5999-00-279-2020
NSN 5925-00-950-5584
NSN 5945-00-537-0934
NSN 5998-00-033-9692
NSN 5975-01-285-7321
NSN 4140-01-311-0076
NSN 6135-00-321-6707
NSN 5975-01-408-6601