Cannondaleriders

i kn0w thhis p0st was up in all the sp0sers categ0ry's but i wast surre fi they read all 0f them and l need this part and havet f0und any0ne else t0 ask...
i need a retaining nut part number 5000991 and splinedlock washer part number 5000990. these are parts for a cannondale front sprocket assembly.
thanks
J0HN