The Department of Defense, through the Naval Sea Systems Command (NAVSEA), is preparing to draft specifications for MIL-DTL-32123B, a liner made from polybutadiene-based materials. This initiative aims to accommodate various design solutions and processes while encouraging a diverse vendor base for the procurement of these materials. The polybutadiene-based liner is crucial for applications involving cartridge and propellant actuated devices and components, underscoring its importance in defense operations. Interested parties can request copies of the draft document by emailing CommandStandards@navy.mil, with the review period concluding on December 2, 2024. Please note that this announcement is not a solicitation for bids.