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 6220-01-451-3056
NSN 6320-01-021-6633
NSN 7035-00-179-3924
NSN 5895-01-048-4208
NSN 6645-01-286-9115
NSN 5990-01-331-7071
NSN 6145-00-582-1301
NSN 5925-01-026-9649
NSN 6650-00-148-5878
NSN 5930-00-884-5024
NSN 6240-00-646-6931
NSN 5855-00-688-9954