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 6645-00-137-7699
NSN 4140-01-380-2989
NSN 6130-00-525-9271
NSN 5996-00-661-1151
NSN 5910-01-495-4135
NSN 5835-01-599-1876
NSN 5905-01-606-5750
NSN 4140-01-326-1249
NSN 6110-01-158-4038
NSN 5950-01-211-9265
NSN 5999-00-114-1486
NSN 6650-00-067-3572