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 5905-01-512-8979
NSN 5835-01-251-7301
NSN 5930-01-258-4817
NSN 5985-01-537-0318
NSN 6135-01-277-7907
NSN 6650-01-329-8020
NSN 6110-00-632-6078
NSN 5990-01-124-9063
NSN 6685-01-058-3618
NSN 6645-01-342-6070
NSN 5910-01-570-3948
NSN 5855-00-089-3974