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 6620-01-254-7963
NSN 5960-01-388-1988
NSN 5999-00-100-5761
NSN 5905-01-208-7739
NSN 5985-00-549-1511
NSN 6685-01-338-2523
NSN 5855-00-631-4565
NSN 5945-01-127-5489
NSN 5910-01-048-9194
NSN 6320-01-295-9992
NSN 6135-01-370-9441
NSN 5998-01-040-1437