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 5925-01-574-2048
NSN 6320-01-512-2031
NSN 5965-00-639-6621
NSN 6645-00-464-6375
NSN 6220-00-475-9078
NSN 6610-01-042-3310
NSN 6320-00-583-3105
NSN 6650-01-258-5871
NSN 6150-00-765-1527
NSN 5975-00-938-3794
NSN 5945-01-584-6018
NSN 5855-00-149-0766