Used on 23n ship, ohio class ssn (trident).. 11-1/2 1st end thread quantity per inch fconnectors (4) brnze; chain rng (2) ph brnze per mil-w-16602; gasket buna-n per mil-r-15624 cl 3; rope nylon; cap (1) npsh 1st end thread series
3a all ends thread class 2.272" overall length fluid end bulkhead thd 0.438-20unjf-3a anodize body surface treated male coupling half unjf all ends thread series