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 5945-00-472-7823
NSN 6650-01-491-6733
NSN 6650-01-412-1490
NSN 6220-01-236-9816
NSN 5996-01-491-6739
NSN 6135-01-322-4655
NSN 6130-01-574-6579
NSN 5965-01-423-8543
NSN 6685-00-038-7886
NSN 6645-01-291-8352
NSN 6145-01-335-0088
NSN 6240-00-591-6836