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 5855-00-256-5562
NSN 5990-01-306-9290
NSN 6320-01-054-3046
NSN 5996-00-404-6704
NSN 6650-01-467-8818
NSN 5960-00-529-2704
NSN 6110-01-141-2972
NSN 5990-01-127-9294
NSN 6130-01-598-9952
NSN 6645-01-415-9987
NSN 6150-00-221-2593
NSN 5835-00-289-9080