This is a direct part replacement for Airbus Helicopters P/N 350A37-2069-20 and fits on most AS350 and AS355 helicopters. This is the older style piston before the revision. This part is made out of a stonger stainless steel (17-4) than the OEM and it comes chrome plated on the two main journals that wear the most. This part is not yet FAA approved.
AS350 Shock Absorber Piston P/N PTA350A75-2069-20