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: Nuts of iron or steel
NSN 6620-00-188-4201
NSN 6110-00-547-8858
NSN 6240-01-542-8886
NSN 6130-00-122-6423
NSN 6135-00-134-6648
NSN 5910-00-274-0127
NSN 6645-01-076-9310
NSN 5996-01-272-2737
NSN 5945-01-183-6335
NSN 5975-01-484-1299
NSN 5935-00-144-8017
NSN 5910-00-723-0985