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 6240-01-439-4727
NSN 5990-00-867-1122
NSN 5998-01-176-6419
NSN 6220-01-067-0630
NSN 5915-01-229-9193
NSN 5985-00-949-8425
NSN 5999-00-195-7266
NSN 5920-01-206-9947
NSN 4140-00-185-2993
NSN 5920-00-099-0737
NSN 6610-01-406-1601
NSN 7035-00-421-8710