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.)
NSN 5996-01-186-3266
NSN 5905-00-935-8430
NSN 6135-00-405-1989
NSN 5930-01-190-6749
NSN 6135-01-548-1423
NSN 6145-00-366-5790
NSN 5985-01-223-0840
NSN 5905-01-654-4550
NSN 5935-01-052-2446
NSN 6135-00-078-9931
NSN 6135-01-020-3805
NSN 5920-01-660-4268