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 5985-00-111-5020
NSN 5930-00-676-1019
NSN 6110-01-643-5558
NSN 5996-00-600-6384
NSN 4140-00-238-9940
NSN 6145-01-214-8037
NSN 6645-01-383-8139
NSN 7035-00-003-7518
NSN 5905-00-992-7947
NSN 5945-01-327-2289
NSN 6220-00-149-0977
NSN 6645-00-994-6664