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 6650-01-038-9023
NSN 6650-01-426-4253
NSN 6220-00-333-8521
NSN 5975-01-540-9475
NSN 6130-00-727-3294
NSN 4140-01-147-2164
NSN 5925-00-839-6067
NSN 5910-01-030-6236
NSN 6620-01-575-9561
NSN 6610-01-053-6781
NSN 5905-00-351-8013
NSN 6685-01-373-1292