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 5910-00-004-5543
NSN 5990-01-581-5103
NSN 5999-01-042-5987
NSN 6145-00-215-4994
NSN 5990-01-089-9694
NSN 5950-01-415-9890
NSN 6220-01-370-4215
NSN 7035-01-512-1826
NSN 2925-00-048-7172
NSN 6135-00-351-8606
NSN 5965-01-383-7235
NSN 6110-01-352-6438