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 5960-01-624-1170
NSN 5915-01-123-9956
NSN 2925-00-844-2789
NSN 6105-01-026-0165
NSN 5990-01-426-7350
NSN 5965-01-239-4034
NSN 6685-01-291-2633
NSN 6240-00-438-6999
NSN 5925-00-599-6339
NSN 6645-01-323-1956
NSN 6130-00-300-1689
NSN 6145-01-631-1788