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 6685-01-501-5362
NSN 5935-01-079-4445
NSN 5990-00-734-3837
NSN 7035-00-179-3924
NSN 5930-01-432-7422
NSN 5910-01-022-6505
NSN 7035-00-205-1932
NSN 6240-01-284-4330
NSN 6220-01-643-4103
NSN 6135-00-461-3590
NSN 5996-01-023-7896
NSN 5990-01-127-4853