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 5910-01-129-0059
NSN 6240-01-412-6426
NSN 6685-01-575-3604
NSN 5945-01-263-5770
NSN 5915-01-076-2803
NSN 5910-01-632-9191
NSN 6650-01-378-6868
NSN 5935-00-507-5679
NSN 5925-01-157-9950
NSN 5930-01-604-9220
NSN 6130-01-631-1185
NSN 5945-01-026-1916