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 6620-01-283-5627
NSN 5935-01-151-1248
NSN 6150-00-907-9325
NSN 7035-01-283-2536
NSN 5999-01-541-9129
NSN 5996-00-147-4120
NSN 5990-00-269-2226
NSN 6685-01-043-4750
NSN 5920-01-123-9854
NSN 5990-01-655-1437
NSN 5855-01-362-6532
NSN 4140-00-034-0811