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 5990-01-305-7228
NSN 5945-01-212-0147
NSN 6145-01-529-5770
NSN 5855-00-472-2055
NSN 5835-01-501-0526
NSN 5975-01-648-5260
NSN 5965-01-469-7401
NSN 6645-01-226-2766
NSN 6220-01-081-0593
NSN 6685-01-141-4499
NSN 4140-01-641-6633
NSN 5996-01-232-0067