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 5930-00-986-3791
NSN 5910-00-063-6076
NSN 6110-00-508-5892
NSN 5960-01-105-5131
NSN 6685-01-286-1375
NSN 5996-00-426-7370
NSN 5965-00-568-5802
NSN 4140-01-285-4418
NSN 5855-01-391-7472
NSN 5855-01-165-6361
NSN 5965-00-396-3411
NSN 5895-01-148-6594