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 4140-00-590-2317
NSN 4140-01-543-1210
NSN 5945-00-005-0325
NSN 5930-01-470-5161
NSN 5996-00-883-2051
NSN 5996-00-345-8025
NSN 5965-00-424-9636
NSN 5996-01-069-8747
NSN 5925-01-039-8375
NSN 6645-01-407-5799
NSN 6135-00-100-0485
NSN 6110-01-031-9670