right-hand external 18 external thread quantity per inch surface finish is type v with colorless passivate-72hrs salt spray, zinc plating is of 25 ?m zinc surface treated npt external thread series
Used on aircraft application;aircraft, hercules c-130. 3a all ends thread class 12 1st end thread quantity per inch weapon system essential anodize surface treated un 1st end thread series
Used on helicopter,utility-tactical transport,uh-1 and eh-1 (bell). 3a all ends thread class 12 1st end thread quantity per inch anodize surface treated un 1st end thread series
Used on attack helicopter model ah-1s;aircraft stratolifter c-135. 3a all ends thread class weapon system essential anodize surface treated unf all ends thread series
