Rt clavicle orif 5 weeks post op no pain, near rom snowboarding planned for today and I think I'm going to chance it. W/o direct fall, any risk?

Yes. Collide with someone or a tree, u r pushing the envelope, buy i always did & still alive. This is not an ok from me, but u r at risk. U never kno what u may encounter that will put @ risk.
Clavicle. Yes you could suffer a refracture or loosen the hardware. Fractures take a minimum of 6 weeks to heal and even longer to withstand stress from falling while skiing. You are definitely taking a risk.