This notice requests information from potential offerors for the production of Columbia Class submarine tailcones. The Naval Surface Warfare Center, Carderock Division seeks to identify sources through an upcoming industry day and pre-solicitation notice for the upcoming solicitation to be released in October 2021. The requirement is for the manufacture and delivery of tailcones over a five year ordering period using an indefinite delivery/indefinite quantity contract vehicle with both fixed price and cost reimbursable contract line items. Offerors are asked to provide information on their capabilities and any barriers, in addition to recommendations on the contract and line item structures, with responses limited to ten pages. The anticipated award date is the third quarter of fiscal year 2022.