The item is a flight safety critical aircraft part (fscap).
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 5985-01-631-4274
NSN 6145-00-278-0697
NSN 5930-01-477-6344
NSN 6650-01-094-2010
NSN 5920-00-922-8493
NSN 5950-01-009-4532
NSN 6610-01-545-4080
NSN 5950-01-460-6767
NSN 5965-00-280-4182
NSN 4140-01-335-6248
NSN 5930-01-196-9257
NSN 5965-01-373-6457