Color black
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 6240-01-583-6402
NSN 5915-01-116-5548
NSN 6220-01-501-2784
NSN 6685-00-854-9169
NSN 6645-00-854-7505
NSN 6220-01-305-7210
NSN 5920-01-408-6800
NSN 5950-01-450-3152
NSN 6110-01-497-7502
NSN 6130-01-238-8260
NSN 6620-01-050-2866
NSN 4140-00-903-3965