This is a proposed procurement for piston rings with a one-year contract term or until total orders reach $350,000. The guaranteed minimum quantity is one unit, with an estimated three orders per year. Delivery is required within 73 days after receipt of order, and items will be shipped to various DLA depots within and outside the continental United States. The solicitation is an RFQ available only electronically, and quotes must be submitted electronically. All responsible sources may submit a quote for consideration.