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 6130-01-212-5144
NSN 6145-01-634-0388
NSN 6130-00-912-8073
NSN 7035-01-417-6261
NSN 6685-00-739-5926
NSN 5960-00-990-1508
NSN 6650-01-442-0267
NSN 5925-01-029-3483
NSN 5930-00-239-9584
NSN 6645-01-193-5214
NSN 6240-01-123-8822
NSN 7035-01-245-7973