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 5996-00-543-1566
NSN 6645-01-574-6160
NSN 7035-00-483-8630
NSN 6650-01-391-4461
NSN 5910-01-241-9739
NSN 6105-01-417-2010
NSN 6320-01-438-6280
NSN 6220-01-029-5037
NSN 5930-01-564-4036
NSN 4140-01-506-9651
NSN 6220-00-790-5431
NSN 5975-00-439-7776