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 6620-01-112-6440
NSN 6240-01-299-2335
NSN 5895-01-214-3950
NSN 6135-01-556-7318
NSN 6320-00-857-4073
NSN 6240-00-445-4765
NSN 5915-01-113-7872
NSN 5960-00-989-8678
NSN 5985-01-502-7220
NSN 5905-01-271-8492
NSN 6150-01-208-0166
NSN 6105-01-608-5217