3a first fluid end connection thread class 2.911" overall length passivate surface treated coupling assembly unf first fluid end connection thread series
Used on transport helicopter, model ch-47. 3a 3rd end bulkhead thread class 12 3rd end bulkhead thread quantity per inch anodize surface treated unj 3rd end bulkhead thread series
3a all ends thread class 2.705" overall length 6 bolt hole quantity 12 first quick disconnect end thread quantity per inch grumman aerospace a-10 aircraft male coupling half un all ends thread series
3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch anodize inside surface treated flared w/ bulkhead thread unj 1st end bulkhead thread series
3a all ends thread class 12 all ends thread quantity per inch nickel inside surface treated flared w/ center wrenching facility un all ends thread series