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 5965-01-204-8505
NSN 5925-00-254-9416
NSN 2925-00-265-7539
NSN 5965-00-686-0957
NSN 6645-00-521-0353
NSN 6620-01-012-2852
NSN 6110-00-625-6728
NSN 5975-00-195-1543
NSN 5965-01-557-4854
NSN 6220-01-190-8605
NSN 5895-00-065-4845
NSN 2925-01-618-2711