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 5945-01-187-9245
NSN 6620-01-300-6992
NSN 5905-00-958-0061
NSN 5930-01-626-7749
NSN 5925-01-546-3408
NSN 5975-01-227-4441
NSN 6645-01-607-5999
NSN 4140-01-260-4003
NSN 5925-01-232-3928
NSN 6240-01-068-3491
NSN 4140-01-659-3164
NSN 5950-01-052-6655