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.)
Classification: Nuts of iron or steel
NSN 5910-01-535-7501
NSN 6620-01-446-6571
NSN 4140-01-007-0590
NSN 5999-01-433-2228
NSN 6130-00-615-5727
NSN 6130-00-344-8161
NSN 6320-01-659-2819
NSN 5990-01-439-4643
NSN 5935-00-518-3576
NSN 6240-01-014-5598
NSN 5996-01-033-5018
NSN 7035-01-568-1316