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 6320-00-336-5570
NSN 5910-01-155-9815
NSN 6240-01-548-0529
NSN 4140-01-085-4965
NSN 5990-01-465-9235
NSN 6135-00-577-8429
NSN 5990-01-364-0813
NSN 6240-01-102-4861
NSN 5925-01-510-8584
NSN 5915-01-177-7187
NSN 5930-01-161-5915
NSN 6610-01-033-2402