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 6145-01-124-6688
NSN 5999-00-538-3328
NSN 6645-01-550-4895
NSN 5910-00-227-0848
NSN 5930-00-722-1150
NSN 6685-01-181-6232
NSN 5965-01-604-1632
NSN 5895-00-449-7972
NSN 5960-01-231-9119
NSN 6220-01-437-9002
NSN 5999-00-299-1207
NSN 5990-01-206-3606