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 6620-01-534-7180
NSN 6220-01-627-0393
NSN 5975-00-332-7221
NSN 5905-01-396-8700
NSN 5945-01-096-8010
NSN 6130-00-188-3717
NSN 6110-00-659-3348
NSN 5915-01-521-2953
NSN 5920-01-480-3209
NSN 5895-01-597-3718
NSN 5910-00-111-2065
NSN 5990-01-473-4314