Used on aircraft engine, j-57. 3a 3rd end bulkhead thread class 12 3rd end bulkhead thread quantity per inch supports anthony model mlt 6-2; nsn 3930003271575 cadmium surface treated unj 3rd end bulkhead thread series
3a all ends thread class 2.972" overall length 12 first quick disconnect end thread quantity per inch bulkhead threads on fluid end connection anodize body surface treated male coupling half un all ends thread series
3a 2nd end thread class 12 1st end thread quantity per inch three 0.065 in.min, 0.075 in.max dia holes drilled through hex corners, 0.203 in. from first end anodize inside surface treated un 2nd end thread series
3a 2nd end thread class three 0.065 in.min, 0.075 in.max dia holes drilled through hex corners, 0.312 in.from first end anodize surface treated unf all ends thread series
3a 1st end thread class 4 2nd end bolt hole quantity 12 1st end thread quantity per inch od of raised face hasgroove to dia. 0.991 in. 0.228 in. wide anodize inside surface treated uns 1st end thread series
2a 1st end thread class 3 2nd end bolt hole quantity 12 1st end thread quantity per inch od of raised face grooved to dia. 1.293 in. 0.222 in. wide anodize inside surface treated uns 1st end thread series
3a 1st end thread class 3 2nd end bolt hole quantity 12 1st end thread quantity per inch od of raised face grooved to dia. 0.991 in. 0.228 in. wide anodize inside surface treated uns 1st end thread series
