The VA is conducting an RFI/Sources Sought for planning purposes to identify qualified sources capable of providing turbine engine oil equivalent to Castrol Aero J5 (Part# 15AF27 or equal), quantity 5 EA, supplied in 55-gallon drums. The oil must be synthetic-base, cover three classes of gas turbine engine lubricating oils, have nominal viscosity of 5 centistokes at 100°C, be identified by NATO Code O-156, and be fully compatible with MIL-PRF-23699F. The applicable NAICS is 324191 with a 900-employee size standard. Interested firms are asked to provide capabilities statements, business size/status, manufacturer or distributor status, subcontracting and non-manufacturer rule information, Buy American conformity, lead time, product lifespan/support, FDA clearance if applicable, leasing availability, federal contract/schedule information, general pricing, and SAM UEI/CAGE. This notice is not a solicitation, and responses will be used only for market research and acquisition planning.