Nha is boom assembly, p/n 499-4744
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.
NSN 5920-01-045-8870
NSN 5935-00-270-3639
NSN 6685-01-225-1058
NSN 6105-00-141-5598
NSN 5996-01-188-8792
NSN 5835-00-011-6660
NSN 6240-01-322-7465
NSN 5930-01-501-2794
NSN 4140-01-032-3705
NSN 5910-01-421-0303
NSN 6610-01-097-4498
NSN 5910-01-613-7891