Square nut; heavy
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 7035-00-238-3662
NSN 5905-01-303-6088
NSN 5965-00-627-8382
NSN 6145-01-054-7463
NSN 5945-00-296-1729
NSN 6105-01-279-4933
NSN 6650-00-675-1370
NSN 6130-01-334-8370
NSN 6620-00-280-2874
NSN 7035-01-571-8784
NSN 6645-00-057-3499
NSN 4140-01-257-5651