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 5990-01-376-8930
NSN 5960-01-084-7381
NSN 5975-00-204-9190
NSN 6105-00-870-2801
NSN 7035-00-349-8571
NSN 5915-01-106-2606
NSN 5920-01-473-4693
NSN 5905-01-359-8097
NSN 5998-01-256-6946
NSN 6320-01-605-7059
NSN 6220-01-068-4066
NSN 5999-01-233-0854