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 5905-01-448-9664
NSN 6650-00-796-9972
NSN 6620-00-957-7161
NSN 6685-01-596-4154
NSN 5950-01-281-7466
NSN 6610-00-572-1284
NSN 6240-00-886-6615
NSN 5985-00-422-2047
NSN 6110-00-427-9239
NSN 2925-01-065-0060
NSN 5925-01-017-3011
NSN 6685-01-328-9166