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 6130-01-619-8949
NSN 6320-01-418-6681
NSN 5965-01-601-4332
NSN 6650-01-437-8852
NSN 5915-01-265-2167
NSN 2925-01-419-3805
NSN 5999-01-391-5416
NSN 6135-00-334-4500
NSN 5855-01-010-4921
NSN 5975-01-569-5866
NSN 6105-00-740-7757
NSN 5985-01-646-1108