Metal; aircraft model hh65a flotation system
No other part numbers with same form, fit, and function found.
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 5999-00-259-1722
NSN 6110-00-226-3148
NSN 6130-00-331-6836
NSN 6150-01-057-5309
NSN 6620-01-109-1906
NSN 5930-01-604-9646
NSN 5910-00-593-2215
NSN 5999-01-100-2586
NSN 5990-00-929-3216
NSN 6110-01-009-7744
NSN 5998-01-536-9465
NSN 5960-01-418-8402