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 5910-01-061-3735
NSN 6110-01-110-8555
NSN 5975-01-580-1197
NSN 5895-00-548-0124
NSN 6220-01-011-8989
NSN 6240-00-107-8192
NSN 6105-00-699-9186
NSN 5950-00-003-3006
NSN 5925-01-050-4265
NSN 5950-01-528-7143
NSN 5920-01-275-8554
NSN 5960-01-146-0289