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 6145-00-841-5149
NSN 6110-01-566-1684
NSN 4140-01-420-6508
NSN 5905-00-971-6901
NSN 6240-01-146-4839
NSN 5996-00-377-9464
NSN 5985-00-728-9595
NSN 6620-01-582-0090
NSN 6105-00-159-1061
NSN 2925-00-102-7701
NSN 5990-01-423-8189
NSN 5985-00-189-0953