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 6645-00-909-0556
NSN 6135-01-048-0910
NSN 6645-01-541-5696
NSN 5965-00-939-4495
NSN 5975-00-278-7437
NSN 6135-01-255-9129
NSN 5960-01-243-0007
NSN 6130-01-512-8152
NSN 6240-01-510-9299
NSN 6220-01-596-0715
NSN 6150-01-104-4323
NSN 6130-00-443-1681