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 5855-00-403-1031
NSN 5905-01-011-3847
NSN 5999-00-491-3186
NSN 6220-01-090-0126
NSN 5985-01-621-8692
NSN 4140-01-652-5057
NSN 5925-01-025-7008
NSN 5920-00-097-7648
NSN 5910-00-717-6812
NSN 6620-00-106-9658
NSN 6105-01-261-8028
NSN 6645-01-094-8917