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 5990-01-443-2931
NSN 5950-01-277-5829
NSN 6685-01-424-0497
NSN 5996-01-377-9730
NSN 5855-00-165-3093
NSN 6105-01-318-5734
NSN 6130-01-282-3599
NSN 5975-01-644-9870
NSN 6135-00-497-0491
NSN 5960-00-088-4341
NSN 6150-01-430-9752
NSN 5985-00-155-9417