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 6135-01-327-2092
NSN 5996-01-255-5512
NSN 5990-00-816-9289
NSN 6645-01-420-8360
NSN 7035-01-444-4240
NSN 5855-01-042-7990
NSN 4140-01-619-7819
NSN 6610-01-474-5206
NSN 5905-01-478-1748
NSN 2925-00-684-7708
NSN 5895-00-689-6293
NSN 6620-01-187-7267