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 4140-01-502-8993
NSN 5835-01-502-9228
NSN 6610-01-515-9712
NSN 5895-01-164-2218
NSN 5835-00-059-5854
NSN 6650-01-069-4335
NSN 5895-00-188-8156
NSN 6220-01-510-3927
NSN 5985-00-272-7451
NSN 5975-01-463-2682
NSN 5990-00-820-5926
NSN 5925-01-314-8131