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 5910-01-345-9945
NSN 5945-00-369-1585
NSN 5965-01-005-0341
NSN 6130-01-171-7597
NSN 6685-00-811-3961
NSN 5895-01-411-6024
NSN 5905-00-224-0744
NSN 6110-01-262-0695
NSN 5950-00-775-3780
NSN 5998-01-536-2083
NSN 5905-01-386-3180
NSN 5985-00-218-1356