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 6620-01-026-1776
NSN 5996-00-880-5340
NSN 6105-01-105-3641
NSN 5915-00-229-1474
NSN 5910-00-868-6369
NSN 6685-00-261-4860
NSN 5895-01-477-9590
NSN 6320-00-139-1090
NSN 7035-00-803-3056
NSN 5915-00-290-1569
NSN 5930-01-381-5528
NSN 6620-01-350-0323