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 5930-01-521-3881
NSN 4140-00-995-3268
NSN 5910-01-492-8217
NSN 5920-01-210-7648
NSN 5985-00-819-4481
NSN 6135-01-167-7604
NSN 6130-01-500-3102
NSN 6685-01-591-7043
NSN 5960-01-546-2379
NSN 5835-01-053-6209
NSN 6240-01-342-5056
NSN 5855-01-582-4594