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 5945-01-172-2513
NSN 6105-01-254-1793
NSN 5910-00-473-2576
NSN 6685-01-044-5044
NSN 6620-00-629-5850
NSN 6320-00-036-3688
NSN 5960-01-201-4249
NSN 5915-00-658-2689
NSN 5960-01-528-1147
NSN 6105-01-381-1088
NSN 5990-01-090-9042
NSN 5895-00-439-6140