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 7035-01-003-1944
NSN 5965-01-012-1065
NSN 5999-00-495-3965
NSN 5920-01-104-4332
NSN 5895-01-116-3271
NSN 2925-00-816-8765
NSN 5905-01-100-1146
NSN 5910-01-563-6265
NSN 2925-00-585-9861
NSN 6145-01-616-8864
NSN 6145-00-893-8970
NSN 6150-00-172-0431