17 mm x 40 mm x 21 mm NTN NUTR203/3AS Needle roller bearings-Roller follower with inner ring

Needle Roller Bearings-Roller Follower With Inner Ring offers a 17 mm x 40 mm x 21 mm NTN NUTR203/3AS Needle roller bearings-Roller follower with inner ring 17 mm x 40 mm x 21 mm 4650 lbs radial static load capacity: selection of Genuine Needle Roller Bearings-Roller Follower With Inner Ring at Wholesale Prices. We are a 17 mm x 40 mm x 21 mm NTN NUTR203/3AS Needle roller bearings-Roller follower with inner ring Certified Parts Retailer TON BEARING CO.,LTD.

What is NUTR203/3AS bearing cross reference？