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 6240-00-724-6867
NSN 6645-00-488-4432
NSN 6645-00-445-5485
NSN 5975-00-835-0393
NSN 6610-01-222-0582
NSN 5925-01-115-1789
NSN 5990-01-179-5625
NSN 5855-00-014-5008
NSN 6135-01-595-4779
NSN 6145-01-588-5885
NSN 6610-01-253-5112
NSN 5855-00-548-4742