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 6240-01-055-5193
NSN 6645-01-207-5065
NSN 5960-01-543-0235
NSN 5945-01-445-6081
NSN 6150-00-572-3229
NSN 5945-00-231-7364
NSN 5945-01-351-5354
NSN 6685-01-650-6873
NSN 5835-00-655-1000
NSN 6150-00-692-7043
NSN 6645-01-221-9424
NSN 5915-01-477-4647