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 2925-01-400-2286
NSN 5945-00-553-9963
NSN 6220-00-316-2500
NSN 7035-00-020-2227
NSN 6320-01-527-0211
NSN 5910-01-275-7259
NSN 5915-01-144-1125
NSN 6685-01-293-3326
NSN 6105-01-092-2362
NSN 5990-00-942-4006
NSN 5930-01-074-8223
NSN 5925-01-462-6172