The U.S. Coast Guard is requesting quotations for two anti-surge valves (NSN 4810-01-522-6178, P/N 4951462) for use in its aircraft. This is a restricted requirement anticipated to be awarded on a sole-source basis to RTX Corporation. Offerors must provide clear traceability to the OEM and submit a Certificate of Conformance; no drawings or specifications are available. Only quotations with FOB Destination or FOB Origin shipping terms will be accepted, and email quotations are preferred.