7.000" overall length one 1/4 in. -18 nptf sq headed pipe plug, centrally located on body of spool, one 1-1/2 in. -11-1/2 npt thd hole, centrally located on body of spool, 180 deg from pipe plug
3a first fluid end connection thread class 5.141" overall length 12 first fluid end connection thread quantity per inch bulkhead threads on 1st fluid end connection anodize surface treated coupling assembly un first fluid end connection thread series
Used on t-58 aircraft engine. 3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch passivate surface treated unj 1st end bulkhead thread series
