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 5998-00-632-0028
NSN 5895-00-921-4012
NSN 5910-01-156-7383
NSN 6320-00-553-8427
NSN 2925-01-273-4898
NSN 6145-01-350-3532
NSN 5960-00-988-2576
NSN 5975-01-454-8100
NSN 5990-01-003-4209
NSN 6685-01-421-3374
NSN 6130-00-460-0620
NSN 5998-01-627-5134