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 5965-00-471-5018
NSN 6220-00-553-8938
NSN 5985-01-332-6684
NSN 5915-00-539-9930
NSN 5925-00-849-2767
NSN 5935-01-606-3764
NSN 5999-00-121-9142
NSN 6220-01-415-0926
NSN 4140-01-119-8106
NSN 2925-00-774-8247
NSN 5998-00-100-2992
NSN 6645-01-179-0243