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 6645-01-211-6502
NSN 2925-01-508-4138
NSN 5925-00-226-1155
NSN 5998-01-025-1000
NSN 6240-01-113-9996
NSN 5960-01-656-6343
NSN 6145-01-394-8671
NSN 6220-00-397-6910
NSN 6685-01-123-9275
NSN 5965-00-068-4812
NSN 6320-01-195-5583
NSN 6220-00-497-7160