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 5985-00-125-4630
NSN 6135-01-301-8776
NSN 4140-01-272-3173
NSN 5905-01-644-8216
NSN 5990-00-576-4882
NSN 6320-00-394-8458
NSN 5975-00-292-3250
NSN 6645-00-363-9775
NSN 5910-01-003-0876
NSN 6320-00-521-9350
NSN 5950-00-067-7286
NSN 5999-00-845-5312