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 2925-00-987-9595
NSN 5925-01-186-5842
NSN 5999-00-869-0448
NSN 6320-00-070-4544
NSN 6130-00-983-9172
NSN 5950-01-224-1806
NSN 7035-01-151-0265
NSN 6650-01-477-0073
NSN 5895-00-247-5490
NSN 6110-01-196-0623
NSN 5998-01-152-2819
NSN 5930-01-237-2483