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 6685-01-239-0516
NSN 5998-01-525-3167
NSN 5996-00-239-2342
NSN 6645-01-007-5295
NSN 5920-01-012-3805
NSN 6650-01-448-2263
NSN 5895-00-834-8344
NSN 5895-01-076-9264
NSN 5895-00-082-3925
NSN 5990-00-145-1187
NSN 6105-00-489-9140
NSN 6685-01-502-7648