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 5930-00-344-4695
NSN 4140-01-399-0330
NSN 6145-01-448-7281
NSN 7035-01-144-6408
NSN 5855-00-308-0474
NSN 7035-01-041-9536
NSN 4140-01-051-0421
NSN 6130-01-526-9344
NSN 6150-01-264-8948
NSN 5985-01-093-5700
NSN 5998-01-079-3925
NSN 5998-01-511-3616