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 6320-01-252-2307
NSN 5998-01-347-3566
NSN 2925-01-041-2360
NSN 5905-01-631-4392
NSN 6620-00-148-9613
NSN 5855-01-626-4169
NSN 5996-01-477-2095
NSN 5950-01-345-9380
NSN 5855-00-482-9876
NSN 5920-00-960-7614
NSN 6685-00-316-5178
NSN 6685-01-479-9120