A: No, this will not fit an Oatey drain assembly.
A: Hi BrianT - Thank you for your question. The O.D. on this shower strainer is 4-1/2" with four prongs that snap the shower drain into place. Prongs are on 2-7/8" center and fits Casper shower drains. Please call our Customer Support Team at 877-272-7755 if there is anything we can help you with.