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 5895-01-194-0986
NSN 6610-01-070-0230
NSN 6645-01-190-0085
NSN 5960-00-412-1202
NSN 6620-01-112-6440
NSN 6150-01-262-3308
NSN 6650-01-022-0627
NSN 6650-00-373-9220
NSN 6135-01-492-8934
NSN 5960-00-001-8804
NSN 5950-00-246-5277
NSN 5855-01-422-5413