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 5975-00-296-5040
NSN 6135-01-171-9299
NSN 5895-01-602-3519
NSN 2925-01-304-7716
NSN 5945-01-057-0171
NSN 7035-00-445-9657
NSN 6135-01-544-6292
NSN 5910-00-412-1360
NSN 5990-01-334-4111
NSN 6135-01-017-3001
NSN 5999-01-657-1838
NSN 5910-01-218-5413