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 5920-00-553-7118
NSN 6650-00-941-2585
NSN 6685-01-483-1373
NSN 6135-01-486-6537
NSN 6685-01-440-8749
NSN 5930-00-461-9999
NSN 5895-00-596-8678
NSN 6650-01-461-9693
NSN 6320-01-519-8767
NSN 6145-01-435-5700
NSN 5895-01-273-3919
NSN 5945-01-645-4780