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 5930-00-212-1116
NSN 6135-01-576-8491
NSN 5945-01-078-3771
NSN 5910-00-151-5361
NSN 6645-00-515-6148
NSN 5965-01-542-8510
NSN 6110-00-187-4537
NSN 5950-00-521-5201
NSN 6220-01-498-4947
NSN 6110-01-063-8309
NSN 5905-01-088-5934
NSN 5998-00-555-9028