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: Nuts of iron or steel
NSN 5990-00-552-1611
NSN 6320-01-171-3238
NSN 5965-01-373-1412
NSN 6650-01-425-1934
NSN 4140-01-089-3219
NSN 5920-00-189-0858
NSN 5985-01-592-9285
NSN 5925-01-534-7749
NSN 5998-00-136-6753
NSN 5855-01-437-6161
NSN 6685-00-107-6043
NSN 5965-00-876-2378