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 5996-00-472-5387
NSN 6650-00-202-4540
NSN 5855-01-003-7102
NSN 7035-00-543-3272
NSN 5895-00-888-4719
NSN 6105-00-816-9397
NSN 6320-00-857-4073
NSN 5895-01-100-5313
NSN 2925-01-423-3003
NSN 6240-01-199-0367
NSN 6645-01-105-9757
NSN 5930-01-338-7215