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 6135-00-078-9931
NSN 6610-00-917-1480
NSN 6150-01-356-2424
NSN 5990-00-140-1159
NSN 6150-00-681-4511
NSN 6240-00-383-7668
NSN 4140-00-026-5437
NSN 5999-01-460-0842
NSN 6685-00-735-2381
NSN 5915-00-580-2716
NSN 6620-00-891-8584
NSN 6685-00-708-2136