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 5965-01-013-0290
NSN 5905-00-230-5988
NSN 5910-01-205-0809
NSN 6620-00-064-7992
NSN 6320-01-569-2672
NSN 5935-01-441-1318
NSN 2925-00-833-9466
NSN 4140-01-398-8961
NSN 6320-01-416-9357
NSN 5999-01-100-8201
NSN 6145-00-105-6910
NSN 6105-00-115-6399