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 7035-01-612-8091
NSN 5935-00-221-9125
NSN 6685-00-224-5310
NSN 5998-00-475-9841
NSN 5855-01-361-2362
NSN 7035-01-093-7216
NSN 5950-00-409-2200
NSN 4140-01-383-7639
NSN 6240-01-297-8656
NSN 6645-01-383-7362
NSN 2925-01-456-6010
NSN 6110-01-540-4848