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 6645-00-287-9192
NSN 5950-00-483-1677
NSN 5915-01-274-8637
NSN 6320-00-098-2858
NSN 6135-01-447-4001
NSN 5905-00-312-4354
NSN 6130-01-444-3909
NSN 5945-01-463-2218
NSN 5999-01-071-5265
NSN 6130-00-679-1883
NSN 6320-00-035-8781
NSN 5855-01-145-8973