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 6685-00-755-6751
NSN 6220-00-937-1321
NSN 6610-01-595-9809
NSN 5910-01-512-8782
NSN 6105-00-941-9363
NSN 5996-01-553-1118
NSN 6105-01-585-9923
NSN 2925-01-364-7926
NSN 4140-01-420-4074
NSN 6645-01-087-7345
NSN 5915-01-451-4332
NSN 6650-01-025-7425