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 6620-01-452-4034
NSN 5920-00-689-5656
NSN 6145-00-468-8534
NSN 5925-00-401-7767
NSN 6220-00-647-3096
NSN 6135-01-439-8669
NSN 5910-01-331-8244
NSN 5975-01-199-9375
NSN 7035-01-271-1643
NSN 6685-00-122-2342
NSN 5910-01-495-7382
NSN 5855-00-911-1370