This nut has yellow zinc finish, so it has yeoow on it
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6110-01-148-6288
NSN 5925-01-608-6858
NSN 5855-01-398-6170
NSN 5905-01-523-7891
NSN 5950-01-534-4840
NSN 6620-01-197-8207
NSN 6130-00-284-1629
NSN 6110-00-516-8645
NSN 5945-01-352-3246
NSN 6105-00-943-8327
NSN 5930-01-512-8724
NSN 4140-00-035-4997