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 5950-01-426-8810
NSN 5990-01-333-8678
NSN 5975-00-246-4906
NSN 6130-01-543-1227
NSN 5996-00-248-7061
NSN 5915-01-516-2133
NSN 5905-01-362-9689
NSN 5930-01-615-8031
NSN 6135-00-405-1989
NSN 4140-01-110-1194
NSN 6150-01-259-8352
NSN 6320-01-006-6138