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 5990-00-288-1820
NSN 5905-01-335-0671
NSN 5990-01-173-9531
NSN 5925-01-261-5625
NSN 5915-00-553-8755
NSN 5965-01-195-2168
NSN 6105-01-481-1840
NSN 6110-00-022-9565
NSN 5910-00-112-4543
NSN 6320-00-445-1187
NSN 6685-01-461-4618
NSN 6320-01-116-3980