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 6685-00-684-7891
NSN 2925-01-159-8312
NSN 5855-01-184-8089
NSN 5855-01-633-4848
NSN 6620-01-038-1031
NSN 5990-00-959-3312
NSN 5935-01-126-3456
NSN 5999-01-035-8065
NSN 5998-01-238-8457
NSN 6130-01-124-0815
NSN 6220-01-306-0575
NSN 6645-01-215-7247