This notice seeks manufacturers for NSN 2930-01-423-5011, currently approved only for API Heat Transfer Thermasys Corp. Interested parties must complete the attached market survey and return it to the contract specialist. To qualify as an approved source, companies may apply through the DLA Land and Maritime Alternate Offer/Source Approval Request (SAR) program, providing technical data that demonstrates their product meets or exceeds the original equipment manufacturer's quality. The procurement is handled by DLA Weapons Support Columbus. Specific budget amounts and performance location details are not provided in the notice.