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 2925-01-199-4001
NSN 5960-01-323-6432
NSN 5935-00-377-0157
NSN 5910-01-386-3002
NSN 5930-01-181-1151
NSN 5945-00-894-7042
NSN 5910-00-212-5969
NSN 5950-01-331-1034
NSN 7035-01-278-1379
NSN 6650-01-391-6461
NSN 5999-00-935-2335
NSN 6645-00-495-6797