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 5920-01-305-1419
NSN 5999-01-502-0997
NSN 5998-01-412-1122
NSN 5990-00-506-8315
NSN 5985-01-028-0357
NSN 5998-00-319-2833
NSN 5915-01-389-0025
NSN 5930-01-421-5591
NSN 5999-01-010-5136
NSN 6105-01-549-7398
NSN 2925-01-480-8273
NSN 5855-00-494-9581