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 6135-01-312-1040
NSN 6130-00-051-3793
NSN 5905-01-040-4016
NSN 5835-01-004-8997
NSN 5920-01-349-7190
NSN 2925-01-587-3956
NSN 5915-01-463-9241
NSN 5999-01-483-4741
NSN 7035-01-119-2234
NSN 6685-01-634-0611
NSN 5985-01-249-9705
NSN 6105-01-442-5644