The U.S. Army is seeking potential sources to manufacture a Door, Aircraft (NSN 1560-01-582-6078, Part number 70207-52701-042), with responses due by 4:30 p.m. Central Time on 18 May 2026. This is a market research effort, not a solicitation, and no funds are available for response preparation. The contractor must provide all services, facilities, and data for new manufacture, packaging, and shipping, but no technical data package is available. The government does not own the proprietary data, so offerors must have authorization from Sikorsky Aircraft Corporation to access it. The applicable NAICS code is 336413, with a small business size standard of 1,250 employees, and performance location is not specified.