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 6620-01-232-8550
NSN 5910-01-290-1828
NSN 6130-00-233-3548
NSN 5905-01-572-5534
NSN 5905-00-222-9628
NSN 5990-00-412-0019
NSN 5915-01-559-4927
NSN 5996-00-895-0643
NSN 5930-00-552-1946
NSN 6135-00-268-8492
NSN 7035-01-631-8106
NSN 6620-01-059-0876