threaded on one end, 3/8 in., 18 npt, w/female quick-disconnect slip connector on the other end, quick-disconnect end seals fluid in when disconnected, mates to nsn 4730-01-057-0136 npt all ends thread series
3a all ends thread class 12 all ends thread quantity per inch annodized blue, and supports grumman a-10 aircraft anodize surface treated flared w/ center wrenching facility unj all ends thread series