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 6320-01-111-8851
NSN 6240-01-624-1777
NSN 5925-01-212-7249
NSN 5990-01-303-9920
NSN 6685-00-829-1967
NSN 5895-01-516-7678
NSN 6105-01-544-7575
NSN 6135-01-274-3546
NSN 5905-01-087-1913
NSN 5835-01-009-2417
NSN 5855-01-242-8428
NSN 6645-01-208-5090