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 5895-01-427-3727
NSN 5915-01-039-3775
NSN 5910-00-889-6909
NSN 5915-01-090-1057
NSN 5950-01-327-0040
NSN 5855-01-590-2723
NSN 6220-00-402-6633
NSN 5950-01-172-1276
NSN 6135-01-549-5587
NSN 4140-01-042-4765
NSN 6685-01-279-7639
NSN 5960-01-313-9389