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 5910-01-065-0706
NSN 5895-01-392-2288
NSN 5996-00-155-9309
NSN 6135-01-238-2878
NSN 6135-00-767-0331
NSN 5905-01-589-9782
NSN 6150-00-150-7845
NSN 6320-01-415-0953
NSN 6240-00-248-4281
NSN 4140-00-248-5679
NSN 6130-00-007-5992
NSN 5835-01-582-8530