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 5998-00-371-9146
NSN 6620-00-526-4296
NSN 5960-01-377-1907
NSN 6320-01-319-3584
NSN 5950-01-642-0916
NSN 6240-00-212-4305
NSN 5855-01-346-7682
NSN 5895-01-364-3771
NSN 6685-00-559-2742
NSN 5920-00-689-1533
NSN 5990-01-310-2848
NSN 6650-01-495-0995