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 5920-01-274-6983
NSN 5925-01-333-2419
NSN 6685-00-727-4906
NSN 6610-01-256-7938
NSN 5975-01-618-7014
NSN 6145-01-125-4106
NSN 5985-01-451-4765
NSN 7035-00-134-3143
NSN 6220-00-913-8486
NSN 5855-00-912-3885
NSN 5996-01-354-2833
NSN 5835-01-370-4292