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 5985-00-581-9754
NSN 6320-01-054-3046
NSN 6135-00-416-2898
NSN 4140-01-499-8195
NSN 6620-00-816-9755
NSN 6685-00-840-5515
NSN 6620-01-175-5922
NSN 6110-01-293-5722
NSN 5985-00-966-2698
NSN 6650-00-754-2276
NSN 6150-01-444-1264
NSN 6320-01-140-1763