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 6620-01-643-5531
NSN 5945-01-494-2743
NSN 5910-01-289-0912
NSN 4140-01-323-3983
NSN 5996-00-460-1441
NSN 5925-00-468-2757
NSN 5999-01-025-9717
NSN 6610-00-442-6834
NSN 5975-01-027-0253
NSN 5945-01-166-7955
NSN 5910-00-276-6883
NSN 6240-01-505-2777