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 5998-00-261-8727
NSN 6145-00-906-2029
NSN 5935-00-080-0629
NSN 5965-00-913-9545
NSN 6685-01-050-7685
NSN 6240-01-513-9642
NSN 5999-00-893-9466
NSN 6320-00-583-3104
NSN 5990-00-443-2743
NSN 5930-01-086-5675
NSN 6150-01-102-3315
NSN 2925-00-078-0525