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 5910-00-932-3024
NSN 5990-00-922-7317
NSN 6135-00-269-5843
NSN 6320-01-578-6006
NSN 5925-00-230-8723
NSN 6620-01-147-9954
NSN 6320-01-089-9086
NSN 5998-00-753-7856
NSN 5985-01-354-4810
NSN 6610-01-186-4106
NSN 5905-01-261-8105
NSN 5855-00-466-2309