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 5965-01-147-5847
NSN 6685-01-079-0091
NSN 5975-00-418-4967
NSN 5895-01-437-8527
NSN 4140-01-565-3422
NSN 5965-01-441-8826
NSN 5925-01-497-1097
NSN 5945-00-204-9949
NSN 6620-01-015-2470
NSN 5965-01-105-7901
NSN 6610-01-641-6736
NSN 6220-01-334-5120