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 2925-01-101-4655
NSN 5905-01-478-3360
NSN 6110-00-617-9512
NSN 5935-00-036-1329
NSN 5835-01-199-5902
NSN 5960-00-660-3669
NSN 6320-01-536-3077
NSN 5855-01-632-5199
NSN 5920-01-269-3047
NSN 5895-01-544-8314
NSN 6240-00-261-2609
NSN 5835-00-997-1703