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 5965-00-004-6371
NSN 4140-01-201-4359
NSN 6320-00-790-4844
NSN 5835-00-233-6327
NSN 6150-01-436-7600
NSN 5925-01-322-1743
NSN 7035-01-026-1171
NSN 6645-01-119-3496
NSN 5990-01-322-9781
NSN 6145-01-314-3497
NSN 7035-00-142-9076
NSN 6620-01-439-8035