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 5996-00-107-5357
NSN 5910-01-110-0995
NSN 6320-01-157-9076
NSN 6105-01-381-2012
NSN 6685-00-176-5883
NSN 6320-01-415-0953
NSN 6135-01-167-7604
NSN 5855-01-392-3734
NSN 6610-01-007-5997
NSN 6145-01-469-5821
NSN 5960-01-425-1454
NSN 5925-01-333-2419