Item previously known as washer, special, aircraft
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 6320-00-186-6452
NSN 5950-01-268-1573
NSN 5915-01-582-3971
NSN 5996-01-613-6927
NSN 5960-01-406-0299
NSN 6645-01-543-7834
NSN 4140-01-089-9724
NSN 5915-01-545-5418
NSN 5915-00-890-7902
NSN 6150-00-647-3285
NSN 5965-00-722-7574
NSN 6150-01-269-1849