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 4140-01-254-3689
NSN 6145-00-982-8821
NSN 5910-01-453-9256
NSN 2925-01-058-1718
NSN 5960-00-521-9719
NSN 5990-01-364-0813
NSN 5910-01-482-8325
NSN 4140-01-222-2140
NSN 7035-00-421-8710
NSN 6610-00-763-2415
NSN 5935-01-576-5456
NSN 5990-00-023-4163