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 5930-01-425-2630
NSN 6110-01-059-3924
NSN 6320-01-607-1491
NSN 5985-01-021-9578
NSN 6220-01-442-3662
NSN 6240-00-003-6435
NSN 6645-00-076-3050
NSN 6650-00-313-4172
NSN 5895-01-261-6457
NSN 5910-00-391-0050
NSN 6650-00-547-4557
NSN 6150-01-289-7258