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.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5920-01-542-8877
NSN 6320-01-006-6138
NSN 6320-01-523-4954
NSN 6145-01-360-4335
NSN 5930-01-572-3471
NSN 5998-01-386-5773
NSN 5925-01-568-1360
NSN 5999-01-534-8984
NSN 6150-01-053-1291
NSN 5895-01-377-9115
NSN 6135-01-204-8712
NSN 5915-01-516-2133