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 7035-01-527-1148
NSN 5905-00-537-3610
NSN 5905-01-011-2759
NSN 6320-00-116-3658
NSN 5985-00-838-3851
NSN 5985-00-490-3500
NSN 5855-00-165-3093
NSN 6620-01-551-7071
NSN 5920-01-599-5458
NSN 6685-01-190-4356
NSN 6685-01-629-9789
NSN 5895-00-983-0739