Used on test stand hydraulic system componenets. 3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch anodize surface treated unj 1st end bulkhead thread series
3a first fluid end connection thread class 3.487" overall length supports grumman a-10 aircraft anodize surface treated coupling assembly unjf first fluid end connection thread series
3a all ends thread class 2.410" overall length connection end incl bulkhead with 0.875 unjf-3a thd passivate body surface treated male coupling half unjf all ends thread series
3a 2nd end thread class 12 all ends thread quantity per inch drilled for lockwire on first end anodize surface treated plain unj all ends thread series
3a external thread class right-hand external plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
