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 6130-01-356-5297
NSN 5935-01-113-4799
NSN 5950-00-700-0979
NSN 6130-00-081-9397
NSN 5935-00-244-4605
NSN 6685-01-381-0759
NSN 7035-01-483-7824
NSN 5905-01-392-7694
NSN 6145-01-397-1598
NSN 6610-00-117-7647
NSN 5996-00-945-0383
NSN 5835-01-074-1161