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 5998-00-556-2122
NSN 5945-01-597-2142
NSN 5920-00-752-3081
NSN 2925-01-113-6904
NSN 5975-01-557-7172
NSN 5935-01-381-1149
NSN 5920-01-611-9803
NSN 5950-01-605-3104
NSN 5999-00-114-1486
NSN 6220-01-368-3119
NSN 7035-01-619-3043
NSN 6320-00-403-6003