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 2925-01-504-3058
NSN 2925-00-436-3527
NSN 5915-01-497-9414
NSN 5996-01-029-4196
NSN 7035-01-604-7698
NSN 5855-01-634-0259
NSN 5930-01-098-0774
NSN 5998-00-195-3254
NSN 7035-00-679-9027
NSN 2925-01-411-4666
NSN 6685-01-417-1572
NSN 6110-01-302-5699