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 6645-01-137-1684
NSN 6150-01-374-7115
NSN 6130-01-253-1032
NSN 6220-01-512-8290
NSN 6145-00-010-5135
NSN 5960-01-641-5493
NSN 5990-01-517-7848
NSN 5910-01-475-2962
NSN 6105-00-721-6780
NSN 6150-00-392-0994
NSN 6650-01-421-2762
NSN 5965-01-352-1951