Flight safety critical aircraft part
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: Washers other than lock washers, iron or steel
NSN 6110-00-034-3710
NSN 6645-00-754-4108
NSN 5945-00-162-7738
NSN 5996-01-146-4202
NSN 5985-01-461-3113
NSN 5855-01-064-8961
NSN 2925-01-492-5342
NSN 6620-00-757-7511
NSN 5920-01-393-9804
NSN 5855-00-912-3885
NSN 7035-01-419-4317
NSN 6620-00-785-6019