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 5990-01-037-0274
NSN 5990-01-504-9265
NSN 5835-01-193-6192
NSN 6620-00-468-9824
NSN 5895-01-214-1120
NSN 5999-00-977-9952
NSN 5915-01-546-4186
NSN 5920-00-420-1737
NSN 7035-01-341-9098
NSN 2925-01-058-1718
NSN 6620-00-193-9503
NSN 6610-00-967-3054