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 6650-01-037-9755
NSN 5985-01-514-0360
NSN 5998-01-356-7015
NSN 6135-00-267-9432
NSN 6105-01-472-2452
NSN 6240-01-400-3603
NSN 6130-01-492-1627
NSN 6610-01-369-7306
NSN 6130-01-495-1168
NSN 5910-01-341-6406
NSN 5975-00-618-8194
NSN 5910-01-060-1146