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 6610-00-520-1837
NSN 5965-00-857-6622
NSN 6610-00-584-5055
NSN 5945-00-540-1052
NSN 5915-01-296-2204
NSN 6145-00-167-7505
NSN 6150-01-557-5812
NSN 5985-01-231-9007
NSN 4140-00-513-0048
NSN 5975-01-201-4353
NSN 2925-01-556-0333
NSN 6620-00-947-3889