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 5985-00-928-3713
NSN 6135-01-354-3337
NSN 5990-01-254-2936
NSN 6135-00-347-0595
NSN 5920-01-544-4673
NSN 6150-00-728-9764
NSN 6220-01-616-9805
NSN 5965-00-735-9315
NSN 5975-00-629-2768
NSN 2925-01-037-5383
NSN 6130-00-144-8018
NSN 6145-00-780-5509