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 6220-00-237-5964
NSN 6220-00-065-7948
NSN 5835-01-397-8801
NSN 6135-00-488-4478
NSN 6650-00-950-4107
NSN 6150-00-256-6422
NSN 6650-00-098-6128
NSN 6145-00-601-9655
NSN 6620-01-415-5803
NSN 6620-01-510-3501
NSN 6145-01-501-3489
NSN 5835-01-338-5176