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 6240-00-946-4835
NSN 5925-01-567-5307
NSN 6110-00-964-3514
NSN 5910-01-519-2308
NSN 6150-01-311-0467
NSN 4140-00-952-0697
NSN 2925-01-254-3068
NSN 4140-01-359-4171
NSN 6620-00-500-0041
NSN 5910-00-420-1227
NSN 6240-00-630-8069
NSN 5950-01-396-4141