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 5975-01-534-4139
NSN 5960-01-172-9724
NSN 5975-00-023-8987
NSN 6620-01-597-0512
NSN 6320-01-606-2508
NSN 6135-01-338-2281
NSN 6645-01-223-2402
NSN 6150-01-484-9189
NSN 5990-00-518-0684
NSN 6135-00-170-8819
NSN 5990-00-179-2576
NSN 6685-01-652-7111