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 5960-01-439-2980
NSN 6240-01-521-7867
NSN 6610-01-399-7613
NSN 6320-01-425-1417
NSN 5996-01-547-2045
NSN 6150-01-222-0480
NSN 5895-00-924-4610
NSN 5998-01-600-1592
NSN 6220-01-648-7012
NSN 6320-01-181-9474
NSN 5930-01-063-3823
NSN 6220-01-191-7643