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 4140-01-238-1373
NSN 4140-01-511-4922
NSN 5925-01-426-6923
NSN 5930-01-326-2828
NSN 5996-01-364-7934
NSN 5835-01-362-0305
NSN 7035-01-045-7202
NSN 6105-01-444-3849
NSN 6130-01-067-7205
NSN 6610-01-233-5857
NSN 5960-01-544-1273
NSN 2925-00-529-8681