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 6320-01-519-0916
NSN 6220-00-142-5115
NSN 6135-00-377-9165
NSN 5998-01-320-5153
NSN 5950-00-917-4393
NSN 5855-01-062-5655
NSN 6620-00-489-7266
NSN 6110-01-163-2070
NSN 5855-01-400-1590
NSN 6130-01-593-4029
NSN 6610-01-555-8364
NSN 6685-01-364-4994