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 6685-01-202-8900
NSN 6650-01-334-9410
NSN 5990-00-234-9136
NSN 2925-01-609-6831
NSN 5920-01-379-4021
NSN 6135-01-426-8282
NSN 6240-01-085-3403
NSN 5996-01-062-0807
NSN 5935-01-476-7023
NSN 5960-01-227-9642
NSN 6145-01-067-3559
NSN 7035-01-070-1175