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 6685-01-351-6872
NSN 5975-01-253-7268
NSN 5910-01-593-9114
NSN 7035-01-010-8309
NSN 6220-01-004-8909
NSN 5945-01-416-9154
NSN 6685-00-394-8354
NSN 5975-01-196-7580
NSN 6145-01-573-3328
NSN 4140-00-689-6551
NSN 5990-00-153-0055
NSN 6145-01-517-3258