The U.S. Army Contracting Command-Redstone Arsenal is conducting market research via a Sources Sought notice to identify potential sources capable of supplying the Aircraft Door, NSN 1560-01-642-6509, Part No. 70217-01002-073. The item must be packaged and shipped to required destinations, is a non-Critical Safety Item, and has no available technical data package list. Contractors must show a plan to meet special tooling and test equipment requirements through possession, confirmed requisitions, subcontracting, or a technical approach to develop equivalent tools. Eligibility requires NAICS 336413, small business size standard 1250, PSC 1560, and access to Sikorsky-owned proprietary data, as Sikorsky is the only source; the requirement may be set aside for small businesses or competed full and open, with multiple awards possible. This announcement is for informational purposes only, is not an RFP, does not commit the Government to award, and no funds are available for response preparation; interested businesses are asked to submit a capabilities statement of no more than ten pages in bullet format.