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 5990-01-103-2982
NSN 6145-01-196-1678
NSN 5999-00-269-5320
NSN 5855-00-411-8688
NSN 6620-01-176-6956
NSN 6220-01-548-1331
NSN 6240-01-012-3976
NSN 5835-01-161-7461
NSN 5996-00-433-6499
NSN 5975-01-241-2432
NSN 6650-01-090-0239
NSN 6150-01-023-4429