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 6110-01-454-8511
NSN 5998-01-339-6480
NSN 6150-01-112-0391
NSN 6145-01-225-3929
NSN 5960-01-503-0362
NSN 2925-01-359-4027
NSN 5998-01-417-2852
NSN 5930-01-004-1832
NSN 5999-01-126-8393
NSN 5975-01-281-3607
NSN 5996-01-086-3395
NSN 7035-00-946-2642