Size:the thread size of 6AN is 9/16-18 UNF,the thread size of 6AN ORB is 9/16-18 UNF. Material: The 6AN to 6AN orb reducer is made of aluminum alloy 6061-T6 which is anodized black surface,and the O-ring is made of NBR rubber.
6AN to 3/8 Barb Fitting Adapter - ORB Oring Seal AN6 9mm 10mm
ORB-6 O-ring Boss AN6 6AN to AN6 6AN Male Black Anodized Adapter Fitting
(4-Pack) ORB-6 O-ring Boss -6 AN 6AN to AN6 6AN Male Adapter Fitting Black
2PCS ORB-6 AN O-ring Boss -6 AN 6AN to AN6 6AN Male Adapter Fitting Black AN 6
ICT Billet LT Oil Cooler Adapter -6AN ORB Oring In/Out Port Plate L83 L86
????Oil Cooler Adapter 6AN ORB Oring In/Out Port Plate LS1 LSX LS3 LS LS2 551600