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: Threaded fasteners of aluminum
NSN 5905-00-823-4757
NSN 5999-00-905-5146
NSN 7035-00-731-8729
NSN 5895-01-598-5308
NSN 6150-00-286-0827
NSN 6240-00-785-2113
NSN 5975-01-388-1746
NSN 5996-01-610-7449
NSN 5930-00-415-1209
NSN 6150-01-144-0103
NSN 2925-01-408-9485
NSN 6320-00-456-2092