Where to order morphine 60 mg online?

In the US, morphine may only be dispensed with a written prescription from a "praticioner other than a pharmacist" (basically, from a physician). There's an exception in emergency situations, but if you're ordering it online, it's pretty obviously not an emergency situation.

So, you should ask the prescribing physician, or call your insurance provider to see if they can recommend a pharmacy that will dispense this (many insurance providers have mail-order pharmacies that they either run themselves or work closely with, and this close working arrangement may result in lower costs to the insurance company, some of which they may pass on to you in the form of lower co-pays for using their preferred pharmacy). The physician will have to fax in the prescription.

Any site offering to sell you morphine without a prescription (with certain obvious exceptions ... pharmacists, for example, have to be able to buy it so that they can then provide it to patients with a valid prescription, so they can order it directly from Mallinckrodt or whomever) is at the very least illegal and probably a scam.