This is a Request for Information (RFI) for market research on the production of the Joint Service Aircrew Mask for the F-35 Joint Strike Fighter (JSAM-JSF), a chemical and biological protective mask. The Government does not possess a complete technical data package (TDP) for the current system, which is produced by Gentex Corporation, and seeks to understand if this lack of a TDP is a barrier for non-incumbent sources. The mask must integrate with all F-35 variants and subsystems, including the Helmet Mounted Display, to ensure pilot safety. No budget information or performance location is specified in the description. Responses are due by June 5, 2026.