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 5985-00-067-6377
NSN 5920-00-699-1927
NSN 6240-01-485-7739
NSN 5996-01-523-8746
NSN 5950-01-261-1191
NSN 6135-01-079-7852
NSN 5990-01-025-7466
NSN 5990-01-327-1558
NSN 6685-01-571-3452
NSN 5915-00-195-2763
NSN 5895-00-352-8734
NSN 6150-01-146-3462