2PCS -6 AN (AN6 AN 06) to ORB-6 AN(9/16" UNF) O-Ring Boss Adapter Male Fitting
6 AN (AN6 AN 06) to ORB-6 AN(9/16" UNF) O-Ring Boss Adapter In Stealth Black. Fitting, Adapter, -6 AN to 9/16" UNF, Aluminum, Black. Ideal for Aeromotive, Fuelab fuel pressure regulators with a (9/16" UNF x 18 TPI thread).