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 6240-01-653-9921
NSN 5975-01-281-7051
NSN 5945-01-524-8662
NSN 5996-01-069-2915
NSN 5915-01-157-8407
NSN 6620-00-517-6209
NSN 5990-01-123-6557
NSN 5965-01-179-7749
NSN 5996-01-351-6181
NSN 6135-01-462-6040
NSN 5905-00-958-6427
NSN 6135-01-312-1040