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 6320-00-186-6452
NSN 6620-01-138-7527
NSN 4140-00-205-0853
NSN 5950-01-461-9415
NSN 4140-01-209-4215
NSN 5910-01-386-3191
NSN 5920-01-216-6128
NSN 5920-01-315-0018
NSN 5950-00-927-0825
NSN 5945-01-252-7786
NSN 7035-00-981-7216
NSN 6110-00-089-6175