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 5998-00-554-9725
NSN 5945-01-369-4498
NSN 5855-01-031-4729
NSN 5855-01-492-6913
NSN 5855-01-362-3640
NSN 5855-00-337-3679
NSN 5925-01-398-1202
NSN 5996-00-379-6743
NSN 5895-01-168-8117
NSN 6645-01-096-4270
NSN 5999-00-009-1609
NSN 5905-01-418-2388