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 5990-01-106-3786
NSN
NSN 5910-01-080-4836
NSN 5999-00-889-5889
NSN 5998-01-430-2594
NSN 6685-00-365-5572
NSN 6135-01-622-1296
NSN 5915-00-703-2013
NSN 6650-01-058-0049
NSN 5855-00-198-3197
NSN 5960-00-990-6850
NSN 5925-01-041-1191