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 4140-00-289-2702
NSN 5965-00-539-7778
NSN 2925-01-381-5307
NSN 5960-01-132-2975
NSN 6685-00-734-7630
NSN 5975-00-111-3208
NSN 6145-00-179-2493
NSN 5990-01-218-1821
NSN 6130-00-354-0251
NSN 6130-00-737-0459
NSN 6130-01-210-0154
NSN 5950-00-677-5997