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 6645-01-218-5234
NSN 6220-01-048-5584
NSN 7035-00-631-3782
NSN 6130-00-065-2345
NSN 5895-01-232-5814
NSN 5950-00-980-5708
NSN 5925-00-290-4451
NSN 5950-01-424-9446
NSN 4140-01-519-9343
NSN 5835-00-180-7555
NSN 5935-00-266-8349
NSN 6620-01-412-7426