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 5999-01-572-0983
NSN 4140-00-592-3318
NSN 5950-01-596-8405
NSN 6685-00-618-9542
NSN 5975-01-571-0421
NSN 6645-00-248-4925
NSN 5999-00-723-2072
NSN 6685-01-529-6990
NSN 6610-01-435-0847
NSN 6320-01-356-5601
NSN 5925-01-652-6807
NSN 5999-00-100-5761