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 6105-01-361-5413
NSN 5930-00-289-6709
NSN 6150-00-419-3788
NSN 6685-01-594-0453
NSN 6220-01-044-0708
NSN 5999-01-158-1562
NSN 6645-00-204-4100
NSN 5960-00-311-8787
NSN 6145-01-053-2969
NSN 6650-01-109-8783
NSN 5835-00-833-7080
NSN 7035-00-800-0770