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 5975-00-060-4050
NSN 4140-00-879-6418
NSN 5998-00-959-2283
NSN 6145-01-501-4228
NSN 6220-01-302-8297
NSN 5965-01-360-6568
NSN 5925-00-905-5135
NSN 6610-01-499-6276
NSN 5920-01-369-7665
NSN 5985-01-361-3735
NSN 6220-01-219-9670
NSN 5935-01-010-3004