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 5920-01-543-6348
NSN 5910-01-084-2849
NSN 6320-01-476-0686
NSN 5920-00-755-2599
NSN 6150-00-502-8347
NSN 4140-00-453-5753
NSN 6135-00-840-6451
NSN 5990-01-218-5160
NSN 6145-01-111-3626
NSN 5985-01-161-4800
NSN 6240-01-652-3751
NSN 6645-01-237-2568