Request for Interested Manufacturers for the C-5 Hydraulic Motor , NSN 165004866297/ Part Number MPHF1-152-1B and the C-5 Screw Drive Motor, NSN 1650000600548/ Part Number MF36-3909-30ZES671-3
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This contract involves market research to identify potential sources capable of meeting the requirements for qualification and production of two critical components for the C-5 Galaxy military transport aircraft: the Power Transfer Unit (PTU), NSN 165004866297/Part Number MPHF1-152-1B, and the Screw Drive Motor, NSN 1650000600548/Part Number MF36-3909-30ZES671-3. The PTU consists of two hydraulic motors linked to transfer power efficiently between hydraulic systems on the aircraft, ensuring pressure and power balance even during engine or pump failure. The Screw Drive Motor is a vital flight safety component used in the pitch trim actuator, incorporating a hydraulic valve manifold and motor to control screw rotation critical for aircraft stability. Eaton Aerospace LLC, the original manufacturer, holds proprietary manufacturing data and is currently the only known capable source due to exclusive access to necessary technical information and production capabilities. Since these items are not commercial products, no broader manufacturing data or support information are available, limiting competition. The Department of Defense, through the DLA/AWB contracting office, intends to award a sole-source contract to Eaton Aerospace but invites other interested manufacturers to express their interest by June 26, 2026. This solicitation is for informational purposes only and does not constitute a formal request for proposal or a contract offer. Responses are voluntary, and the government is not obligated to issue a contract based on this announcement.
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Full Description
SUBJECT
Market research is being conducted to identify potential sources that may possess the expertise, capabilities, and experience to meet the requirements for qualification and production of the C-5 Hydraulic Motor , NSN 165004866297/ Part Number MPHF1-152-1B and C-5 Screw Drive Motor, NSN 1650000600548/ Part Number MF36-3909-30ZES671-3. The Purchase Request number is FD20602600074.
ITEM DESCRIPTION
The Power Transfer Unit and Screw Drive Motor are used on the C-5 Galaxy aircraft which are military transport aircraft.
The Power Transfer Unit, (NSN 1650004866297) is two hydraulic motors connected together and is used to enable the transfer of power from a lightly loaded hydraulic system to a heavily loaded system, thereby making more efficient use of the total hydraulic power capabilities. The units may also be used to pressurize a system that is not pressurized due to engine or hydraulic pump failure. The PTUs allow a pump (engine or Air Turbine Motor driven) to supply power to an adjacent hydraulic system without fluid transfer between the systems. The PTUs are installed between hydraulic systems No.1 and No. 2, between hydraulic systems No. 2 and No. 3, and between hydraulic systems No. 3 and No. 4.
The Screw Drive Motor, NSN 1650000600548 is used on the C-5 Pitch Trim Actuator, which is a critical flight safety component. The screw drive motor is located at the top of the actuator. It consists of a hydraulic valve manifold and hydraulic motor, which drives the screw through a gear train. During operation of the nut drive, rotation of the screw is prevented by the screw drive hydraulic brake and by the screw directional control valve which, when in neutral restricts hydraulic flow through the screw drive motor.
IMPEDIMENT TO COMPETITION
The original equipment manufacturer for these items is Eaton Aerospace LLC (Cage Code: 62983), which maintains its proprietary manufacturing data for these items. The Government does not own manufacturing data packages to release to potential vendors in support of this requirement. These items are not commercial items and therefore there are no commercial product sheets, manufacturing test data, support manuals, etc. available for manufacture.
As a result, Eaton Aerospace LLC (Cage Code: 62983) is the only known source with adequate knowledge of the Hydraulic Motor and Screw Drive motor performance requirements and possession of the required technical data and capabilities needed to produce these items and ensure compatibility of the equipment.
INTEREST
The DLA/AWB Contracting Office intends to award a sole source contract to Eaton Aerospace LLC. for the production of the Power Transfer Unit and Screw Drive Motor. Other interested parties may identify their interest and capability to respond to the requirement no later than 26 Jun 2026 by emailing Trent Miller at trent.miller.4@us.af.mil, Laura Kipa at laura.kipa@us.af.mil, and Victor Henderson at victor.henderson.2@us.af.mil. The Government intends to procure these items using Other Than Full and Open Competition as prescribed by RFO 6.103-1, Only One Responsible Source and No Other Supplies or Services Will Satisfy Agency Requirements.
DISCLAIMER
This request for interested manufacturers is for informational purposes only. This is not a request for proposal. It does not constitute a solicitation and shall not be construed as a commitment by the government. Responses in any form are not offers, and the government is under no obligation to award a contract as a result of this announcement. No funds are available to pay for preparation of responses to this announcement. Any information submitted by respondents to this technical description is strictly voluntary.