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.)
NSN 6220-01-010-1452
NSN 5965-00-368-2879
NSN 5990-01-504-9265
NSN 6645-00-166-7926
NSN 5835-00-711-3371
NSN 5915-00-823-8334
NSN 5990-00-226-7894
NSN 6240-01-334-6961
NSN 4140-01-276-2436
NSN 6145-01-024-8557
NSN 6610-01-100-3662
NSN 5915-01-192-5190