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 4140-01-562-2207
NSN 5835-01-016-8461
NSN 6685-01-136-5670
NSN 6620-00-140-8644
NSN 5920-00-088-4674
NSN 6220-01-529-6728
NSN 6135-01-394-4160
NSN 6645-01-287-5239
NSN 6220-01-602-3630
NSN 5895-00-832-5747
NSN 6620-01-109-2764
NSN 5855-01-291-6790