[kstylianos]

Harry, these are o-ring face seal fittings. The problem is not so much finding a correct fitting for the cooler or 30mm lines, it's that these fittings are used for high pressure (3000 psi) hydraulic applications and the ID of the hoses are not ideal for oil circulation and the crimping sleeves are so long/beefy that once both ends are crimped to the hose, there is absolutely no rubber showing and no flexibility (just need about 9 inches from hard lines to cooler). Anyway, I was looking for the same ORFS end, but with barbed fitting similar to Chuck's 30mm ones above, as they are much shorter, would allow larger ID hose and would get the flexibility I needed.

Diatraibe over, we just cut the threads off and threaded in 3/4" NPT to 16AN fitting. AN is sooo nice but $$