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 5905-01-580-0370
NSN 5930-00-839-8541
NSN 5935-00-156-6834
NSN 6320-01-259-2604
NSN 6645-00-979-6824
NSN 5950-00-140-3123
NSN 5905-01-003-5422
NSN 5905-01-166-6546
NSN 5935-00-533-5780
NSN 5998-01-431-5839
NSN 5895-01-396-0135
NSN 5945-00-296-8464