Three degrees chamfer on one inside edge
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: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6220-01-549-2220
NSN 5990-01-234-4607
NSN 6620-00-613-3023
NSN 6645-01-381-6084
NSN 4140-01-031-0286
NSN 6105-01-067-8377
NSN 5935-01-173-2232
NSN 6610-01-257-5808
NSN 5965-00-508-3270
NSN 7035-01-119-6271
NSN 5920-01-173-9925
NSN 6320-00-456-0836