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 5920-01-251-5011
NSN 5910-01-028-8210
NSN 6105-00-519-2983
NSN 5965-01-361-9760
NSN 6685-01-207-0628
NSN 6105-00-223-3064
NSN 4140-01-308-9649
NSN 5960-01-151-4518
NSN 5998-01-240-4438
NSN 4140-00-449-1356
NSN 5835-01-026-6006
NSN 5915-00-509-2939