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 5855-01-535-7127
NSN 5996-01-362-3567
NSN 5985-00-880-5788
NSN 5999-01-445-7102
NSN 5920-01-112-9844
NSN 5895-00-005-2945
NSN 7035-01-492-5271
NSN 5996-00-913-0991
NSN 5925-01-314-7234
NSN 6320-01-039-5891
NSN 5975-00-497-3865
NSN 6110-01-331-4017