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 5990-01-326-2677
NSN 6685-01-528-7528
NSN 5960-01-641-5493
NSN 5920-01-619-5943
NSN 6240-00-053-8877
NSN 5996-00-504-4865
NSN 5990-00-111-3614
NSN 6135-01-322-4655
NSN 5855-00-862-3345
NSN 5999-01-539-8403
NSN 5950-01-619-5055
NSN 6650-01-549-8478