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 5855-01-250-2421
NSN 5925-00-035-8469
NSN 2925-01-345-9439
NSN 6220-01-595-0707
NSN 5965-00-296-9994
NSN 5910-00-892-3187
NSN 5985-00-139-6026
NSN 5975-01-138-6130
NSN 6320-00-681-1324
NSN 2925-00-526-4541
NSN 6240-00-843-0698
NSN 6110-01-604-9806