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 5996-01-625-8481
NSN 6220-01-387-3266
NSN 5965-00-557-3816
NSN 6145-00-477-2657
NSN 6130-00-808-7842
NSN 6685-01-594-0212
NSN 5915-00-112-3504
NSN 5965-01-461-2850
NSN 6145-01-183-2205
NSN 2925-01-204-6243
NSN 6240-01-425-1160
NSN 5990-01-167-1308