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 6110-00-900-2836
NSN 5960-00-104-5955
NSN 5990-01-164-8673
NSN 4140-01-496-1001
NSN 6320-00-382-7825
NSN 6110-01-423-0739
NSN 5999-01-525-4726
NSN 6320-01-466-4175
NSN 5920-00-534-9801
NSN 5915-01-626-6596
NSN 2925-00-221-8529
NSN 6685-01-423-4613