2a first quick disconnect end thread class 4.239" overall length 12 first quick disconnect end thread quantity per inch anodize body surface treated coupling assembly un first quick disconnect end thread series
Used on a10 aircraft. 3a all ends thread class 3.447" 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. 3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch passivate surface treated unj 1st end bulkhead thread series