Defense Logistics Agency Aviation is soliciting offers for NSN 3110-00-321-7591, an annular ball bearing, under a five-year commercial indefinite-delivery contract. Surplus dealers, small-business dealers, and distributors with available stock are invited to provide a surplus certificate or traceability documentation, along with quantity and price. The item is designated a critical application item, delivery is requested 130 days after order, and award may consider price, past performance, and other stated factors.