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 6145-01-488-1256
NSN 5965-01-295-1125
NSN 5930-01-365-4991
NSN 5960-01-003-0815
NSN 5985-01-327-3601
NSN 5985-00-812-3893
NSN 7035-01-566-3784
NSN 5996-01-633-7979
NSN 7035-01-202-8699
NSN 5935-01-214-0504
NSN 5999-01-648-0018
NSN 5925-01-041-1191