3a 2nd end thread class includes protection caps for both ports w/mtg bracket attached to rear of swing joint; bracket has two mtg holes 0.257 in. id.spaced 1.500 in. c to c unf 1st end thread series
3a 2nd end thread class ist end bulkhead thd size 0.438 in. nom, cl 3a, unf cadmium inside surface treated single joint, straight design unf 1st end thread series
3a all ends thread class w/mtg flange on rigid end, two mtg holes 0.191 in. dia, 2.060 in. apart, flange 0.120 in. thk single joint, double elbow design unf all ends thread series
2a 1st end bulkhead thread class 8.0 deg swing angle capability any direction from straight flow, 1st end bulkhead thd 0.375-24 in., cl 2a, unf passivate surface treated single joint, straight design unf 1st end bulkhead thread series
