The product is a driveshaft shim with a thickness of .005 inches, designed for OMC (Outboard Marine Corporation) Evinrude and Johnson outboard engines. The manufacturer part number is 320168 or 0320168. This item is rare and no longer available (NLA) as new old stock (NOS), making it a valuable find for individuals in need of this specific part for their outboard motor. It is a genuine OMC product that can be used to maintain or repair the lower unit components of compatible outboard engines.