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 5910-00-990-5509
NSN 5935-01-571-6945
NSN 6220-01-619-1637
NSN 5925-01-455-2396
NSN 5895-01-603-0596
NSN 6620-01-451-1168
NSN 6220-01-225-7830
NSN 5945-01-143-9144
NSN 6220-01-435-0198
NSN 4140-01-634-0330
NSN 5910-01-607-4803
NSN 6135-00-100-8890