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 4140-01-544-5214
NSN 5895-00-812-6914
NSN 6220-00-255-5652
NSN 5925-01-533-5786
NSN 5999-00-893-0437
NSN 5950-00-790-8148
NSN 5835-01-125-6676
NSN 5855-00-763-2155
NSN 5835-00-005-7909
NSN 2925-00-977-3311
NSN 6650-01-286-3417
NSN 6145-01-460-4357