3a all ends thread class 2.590" overall length 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series
Used on aircraft application. 2a thread class right-hand 1.008" overall length 1.523" outside diameter dryfilm lube per mil-l-8937 or mil-l-46010 as applicable anodize surface treated flexible coupling body
Used on model lcu-1466 landing craft. 2a external thread class right-hand external 11-1/2 external thread quantity per inch cadmium or zinc surface treated npt external thread series