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 5930-01-471-0080
NSN 5985-00-875-2852
NSN 5935-01-083-9993
NSN 5975-00-035-6524
NSN 6220-01-222-0724
NSN 5930-01-442-8302
NSN 6220-00-098-6588
NSN 5975-00-525-2331
NSN 6105-01-054-4363
NSN 5910-00-092-3206
NSN 6105-01-261-6681
NSN 6610-01-118-4011