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 5985-00-357-1348
NSN 6130-01-287-6028
NSN 5925-00-581-0393
NSN 5960-01-163-8905
NSN 5930-01-311-3215
NSN 6650-01-120-6231
NSN 6110-01-069-2485
NSN 5975-01-400-4204
NSN 5960-01-653-9441
NSN 5930-01-634-0659
NSN 5975-01-196-5713
NSN 5950-01-048-2694