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 6320-00-116-3658
NSN 7035-00-931-3684
NSN 5998-01-039-4319
NSN 5996-01-023-7896
NSN 5910-00-006-5595
NSN 4140-01-412-4568
NSN 6650-00-131-7284
NSN 5855-01-107-5925
NSN 6685-01-432-2579
NSN 6685-01-575-5635
NSN 5945-01-111-7581
NSN 6650-01-504-2676