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 6650-01-261-3013
NSN 5895-01-354-1470
NSN 6220-01-052-3986
NSN 5945-00-067-9823
NSN 5930-00-204-0471
NSN 5905-00-958-3515
NSN 6145-00-903-4619
NSN 5985-01-261-9613
NSN 5915-01-444-2860
NSN 6105-01-529-8154
NSN 5945-01-423-3889
NSN 6220-01-463-9255