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 5998-00-115-6556
NSN 6645-01-560-9339
NSN 5999-01-333-9590
NSN 5905-01-332-6782
NSN 6645-00-255-8182
NSN 6145-00-493-4073
NSN 6220-01-056-5169
NSN 5998-01-356-9187
NSN 6620-01-173-0009
NSN 5920-01-185-2222
NSN 2925-01-422-1542
NSN 6240-00-617-9599