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 6650-01-629-9480
NSN 6145-01-145-5177
NSN 5925-01-461-1628
NSN 6610-01-400-3880
NSN 5998-00-177-7941
NSN 5920-01-265-4002
NSN 5855-00-962-5792
NSN 6130-00-053-1069
NSN 6240-00-502-7710
NSN 6110-01-180-5097
NSN 5855-01-312-5160
NSN 2925-00-778-0645