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 6610-01-152-2821
NSN 6145-01-586-3612
NSN 2925-00-881-3770
NSN 5935-00-285-2767
NSN 5999-01-530-1796
NSN 5965-00-715-6159
NSN 6130-01-602-8672
NSN 5855-01-007-9541
NSN 7035-01-374-7954
NSN 5975-01-359-4848
NSN 6150-00-217-0475
NSN 6645-01-251-0441