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 6650-00-107-1667
NSN 5999-01-136-5483
NSN 6130-01-437-7729
NSN 6320-01-021-6633
NSN 5950-01-382-9337
NSN 5905-01-298-2493
NSN 6650-01-519-9165
NSN 6320-00-004-9158
NSN 6620-00-907-2670
NSN 5960-01-115-1514
NSN 5985-00-250-0541
NSN 5999-00-932-7654