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 6135-01-419-2233
NSN 6645-01-521-4383
NSN 5975-01-208-1737
NSN 6320-01-506-9439
NSN 4140-00-249-5603
NSN 6110-01-102-8431
NSN 5930-01-417-6602
NSN 5945-01-649-9076
NSN 5915-00-833-7714
NSN 4140-01-337-5556
NSN 2925-00-365-3289
NSN 5960-01-411-5217