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 6320-01-326-1316
NSN 5998-01-088-8373
NSN 4140-00-635-9195
NSN 6145-01-634-0388
NSN 5835-00-111-3419
NSN 2925-01-113-6904
NSN 6135-00-816-9052
NSN 6240-01-633-9357
NSN 6610-00-682-6215
NSN 5975-00-915-5834
NSN 6620-01-603-6442
NSN 6685-01-415-5551