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 5945-01-535-1990
NSN 5925-01-184-6912
NSN 4140-00-148-7013
NSN 5905-01-644-0616
NSN 5965-01-330-9152
NSN 5945-01-503-0423
NSN 6145-01-627-1169
NSN 5905-01-026-1027
NSN 6685-01-438-8999
NSN 5930-01-303-4626
NSN 6105-01-552-7047
NSN 5999-00-153-7903