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.)
NSN 6685-01-105-1356
NSN 5910-01-456-7102
NSN 4140-00-295-0787
NSN 5930-01-390-6329
NSN 5930-01-451-4331
NSN 6105-01-188-8800
NSN 5935-00-869-4557
NSN 6320-00-036-3688
NSN 6685-00-914-0971
NSN 6135-01-077-5705
NSN 7035-01-104-5446
NSN 5960-01-498-0572