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 5920-00-627-3876
NSN 5935-00-339-2189
NSN 5835-01-442-6079
NSN 5950-01-334-1987
NSN 6135-00-990-1822
NSN 7035-01-072-3451
NSN 6685-01-105-6196
NSN 5975-01-116-4472
NSN 5905-01-421-4421
NSN 5915-01-251-0852
NSN 5996-01-205-3263
NSN 7035-01-100-2796