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 5925-00-005-3694
NSN 5915-01-073-5100
NSN 5905-01-500-1570
NSN 5990-01-024-9659
NSN 6685-01-616-5191
NSN 5935-01-126-7324
NSN 5855-01-462-4258
NSN 6130-00-242-6704
NSN 6240-01-230-8070
NSN 6240-00-275-1950
NSN 6240-00-225-1627
NSN 5945-00-271-7380