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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5925-00-729-7750
NSN 6150-01-628-5621
NSN 5950-01-645-3011
NSN 6620-01-630-6759
NSN 5930-00-171-5087
NSN 6685-00-902-2278
NSN 4140-01-333-9610
NSN 4140-01-642-2927
NSN 5925-01-123-9866
NSN 5855-01-010-4921
NSN 6150-00-293-5293
NSN 5985-01-381-0844