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 6320-00-036-3688
NSN 6150-01-361-7526
NSN 5905-01-149-4630
NSN 5935-01-025-8161
NSN 4140-00-618-0530
NSN 5930-00-112-6783
NSN 5835-01-360-2657
NSN 6110-01-583-3252
NSN 6145-00-099-8986
NSN 5950-01-415-1563
NSN 5925-01-160-1737
NSN 5960-01-117-6577