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 6610-01-435-5425
NSN 6130-01-431-6734
NSN 6650-01-164-0191
NSN 5990-00-713-9016
NSN 6320-01-459-6992
NSN 6220-01-397-5678
NSN 5835-01-182-1966
NSN 5975-01-104-0797
NSN 5895-01-377-1095
NSN 6135-01-414-8831
NSN 4140-00-486-0396
NSN 5985-01-237-5045