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 5960-01-503-8411
NSN 7035-01-495-1766
NSN 5996-00-725-8307
NSN 5920-01-346-8597
NSN 7035-00-327-0458
NSN 6610-01-425-1523
NSN 7035-00-495-2137
NSN 5855-00-361-0167
NSN 5855-00-427-7848
NSN 5925-01-053-6519
NSN 5999-00-903-3426
NSN 6110-01-076-6155