Home / Center Aero 400, Non-locking, A4S Zoom Center Aero 400, Non-locking, A4S Be the first to review this product SKU: A4S Center only non-locking Aero 400 cap. This piece is the center portion only and fits 400 style Aero flanges. Center has no lock and uses a pull tab to secure in place. Newton P/N: CA-AA-011 $135.00 Qty: Add to Cart | Add to Compare Product Description Product's Review Product Tags Product Description Details Center Aero 400- Center piece only. No Lock. Newton P/N: CA-AA-011 Product's Review Write Your Own Review Only registered users can write reviews. Please, log in or register Product Tags Add Your Tags: Add Tags Use spaces to separate tags. Use single quotes (') for phrases. CMS tab