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 5960-01-003-8480
NSN 5945-01-588-9491
NSN 6150-01-081-2248
NSN 4140-01-337-7695
NSN 5895-01-487-2688
NSN 5996-01-537-2457
NSN 6320-01-326-1316
NSN 5965-01-370-1891
NSN 5999-00-851-2856
NSN 6620-01-365-1499
NSN 5920-00-248-8896
NSN 6130-01-545-3549