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 5999-01-220-8629
NSN 6110-01-440-2878
NSN 6220-01-342-1520
NSN 6685-00-009-0203
NSN 7035-01-487-6481
NSN 2925-01-076-6128
NSN 5895-01-617-6116
NSN 5999-01-472-2515
NSN 5960-01-407-1350
NSN 5998-01-494-3143
NSN 6320-01-362-9518
NSN 5930-01-153-2667