This is a spares procurement for an Oxygen Regulator used on F-15 aircraft, with a total quantity of 81 each (range 20-123) plus a one-lot production surge plan. Required delivery is on or before 5 March 2027 for the line item quantity and 30 days after receipt of order for the surge plan. Performance/delivery destination is Tinker AFB, Oklahoma. Only approved sources can compete; the sole qualified source is Mission Systems Davenport Inc., and the government does not own the data or rights needed to manufacture the item, so interested firms should contact the OEM. The acquisition is not set aside, surplus is not authorized, and it is subject to export control and UID requirements.