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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5925-01-018-1375
NSN 6650-01-170-4397
NSN 6145-00-537-7059
NSN 6105-01-157-5914
NSN 5990-01-322-9781
NSN 5960-01-207-4452
NSN 6645-01-458-8379
NSN 5895-01-222-1080
NSN 6135-01-265-1384
NSN 6145-00-752-2038
NSN 6645-01-388-9648
NSN 5950-01-284-3423