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 6145-01-645-2145
NSN 6620-01-417-8110
NSN 6135-00-826-4798
NSN 6150-01-182-6764
NSN 5855-01-144-0423
NSN 6145-01-557-0653
NSN 6240-01-167-5979
NSN 5910-01-633-9963
NSN 6145-01-128-9083
NSN 5950-00-521-8432
NSN 5990-01-512-5478
NSN 5910-01-644-9423