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 6145-01-411-1210
NSN 6620-00-239-6153
NSN 5999-01-399-4113
NSN 5915-01-583-4168
NSN 6685-01-644-5041
NSN 6105-01-203-9963
NSN 6650-01-189-0975
NSN 6650-01-412-1040
NSN 5985-01-461-8575
NSN 6320-00-004-9158
NSN 6150-00-940-8846
NSN 5920-01-206-0191