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 7035-01-361-4176
NSN 5835-01-104-5707
NSN 6685-00-534-7376
NSN 5895-01-602-7212
NSN 6220-00-884-0769
NSN 6110-00-207-8862
NSN 6685-01-335-2442
NSN 6130-01-308-8899
NSN 6150-01-576-9803
NSN 5990-01-130-4959
NSN 6610-01-433-2219
NSN 5990-01-378-7349