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 6240-01-505-7424
NSN 5996-01-030-6656
NSN 5915-01-366-9850
NSN 5975-01-254-3883
NSN 5960-01-560-8461
NSN 5999-01-215-1236
NSN 6110-01-579-7027
NSN 6130-01-603-8375
NSN 6610-01-368-3269
NSN 5925-01-390-7621
NSN 5855-00-763-2155
NSN 6610-01-155-4060