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 5930-01-198-0916
NSN 5985-00-285-8466
NSN 6110-00-525-3418
NSN 5915-01-370-9762
NSN 5985-01-076-3966
NSN 6110-00-166-7865
NSN 5996-00-660-4708
NSN 5935-01-146-4131
NSN 6145-00-596-8447
NSN 5905-01-011-2759
NSN 6645-00-595-5431
NSN 7035-00-108-4421