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 5855-01-604-9997
NSN 2925-01-209-9245
NSN 6145-01-307-7954
NSN 6240-00-889-1825
NSN 2925-01-224-1884
NSN 6320-00-242-3300
NSN 5895-00-252-2326
NSN 6240-00-569-5854
NSN 5910-01-495-1924
NSN 6240-01-123-9040
NSN 5920-00-261-9848
NSN 7035-01-322-8180