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 7035-01-074-2343
NSN 6320-00-089-9426
NSN 5910-00-201-1874
NSN 5960-00-869-6832
NSN 6645-00-363-9775
NSN 6620-01-141-5747
NSN 5950-01-593-8557
NSN 6610-00-958-0294
NSN 6620-00-730-8699
NSN 6320-00-790-4844
NSN 5895-01-334-4130
NSN 6685-00-007-6831