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 5975-00-816-9621
NSN 6220-01-487-7079
NSN 5915-01-292-9129
NSN 5835-01-355-0308
NSN 6150-00-902-5203
NSN 5910-01-508-2314
NSN 5835-01-416-6455
NSN 6145-00-070-2385
NSN 6135-00-812-9039
NSN 5990-00-561-3407
NSN 5925-00-564-4268
NSN 5999-01-106-5426