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 5910-00-006-3942
NSN 5998-01-475-9891
NSN 5835-01-008-8887
NSN 6685-01-375-6747
NSN 2925-01-437-9041
NSN 5905-00-235-0772
NSN 5895-01-293-2519
NSN 6110-01-048-0427
NSN 5998-00-428-2617
NSN 5950-01-533-3239
NSN 5965-00-303-9701
NSN 5996-01-170-9659