Square nut; heavy
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.)
NSN 4140-01-634-0330
NSN 5960-01-386-5770
NSN 5965-01-258-5662
NSN 5965-00-230-8818
NSN 5905-01-188-9340
NSN 6645-01-364-0867
NSN 5998-01-205-3802
NSN 6685-01-134-8544
NSN 5945-01-448-0029
NSN 5925-00-018-3225
NSN 5999-00-303-4624
NSN 5996-01-311-4424