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 5965-00-170-5254
NSN 5950-00-552-5077
NSN 5999-00-990-5553
NSN 4140-01-238-1906
NSN 5925-00-069-3015
NSN 5990-00-399-2454
NSN 5915-01-419-5602
NSN 6685-01-491-7943
NSN 7035-01-312-5860
NSN 5910-01-435-6053
NSN 5920-01-345-1582
NSN 5905-01-367-1710