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 2925-00-215-3139
NSN 6620-00-959-6614
NSN 6320-01-487-0336
NSN 6220-00-107-1835
NSN 5960-00-420-0418
NSN 5990-01-419-0661
NSN 6685-01-461-1549
NSN 5915-01-151-3057
NSN 6645-00-285-8781
NSN 5855-00-912-3885
NSN 6105-00-275-0826
NSN 6110-01-454-5004