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 5905-00-386-9574
NSN 6645-00-434-8793
NSN 6130-01-223-6139
NSN 6110-01-152-7050
NSN 5925-01-479-2632
NSN 6220-00-271-4639
NSN 5985-01-246-3725
NSN 5910-00-353-6649
NSN 5975-00-494-0703
NSN 5996-01-226-7707
NSN 5990-01-360-0711
NSN 5998-00-244-8629