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 6240-01-458-5730
NSN 6685-01-383-1919
NSN 6650-01-100-3185
NSN 5905-00-514-1984
NSN 6320-01-441-1371
NSN 5985-00-026-4601
NSN 5960-01-028-6192
NSN 5935-01-410-2904
NSN 6645-00-173-2800
NSN 5915-01-235-9851
NSN 5835-00-593-6365
NSN 5950-01-340-9151