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 5925-00-360-2399
NSN 6685-01-449-0933
NSN 5998-01-145-6129
NSN 6240-00-501-7964
NSN 5950-01-433-9143
NSN 2925-01-439-2650
NSN 5915-00-913-5603
NSN 5925-01-279-1689
NSN 5935-01-512-2227
NSN 5950-01-647-1647
NSN 6220-01-434-4306
NSN 5950-01-022-7168