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 5985-00-676-8436
NSN 5996-01-236-3526
NSN 7035-01-562-1453
NSN 6320-00-731-6134
NSN 6130-00-959-5800
NSN 5835-00-688-3941
NSN 6145-00-398-4405
NSN 5925-00-074-9180
NSN 5835-01-528-1864
NSN 6150-01-220-8115
NSN 6650-00-612-9648
NSN 4140-01-413-2162