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 6135-00-451-0709
NSN 6135-01-281-4758
NSN 5915-00-247-6513
NSN 2925-01-510-9378
NSN 5855-00-951-6483
NSN 2925-01-594-0198
NSN 6220-01-089-8839
NSN 6645-00-443-8011
NSN 5998-00-281-5973
NSN 5996-00-164-1659
NSN 5985-01-310-8473
NSN 6685-01-540-1476