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VALVE, RELIEF (P/N 9870038/B) - As Removed

P/N: 9870038/B

Category: Valves & Actuators

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In Stock (12 available)
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This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).

Available Inventory

Condition Stock
As Removed 12 Available

Product Description

The 9870038/B is a relief valve designed to protect hydraulic and pneumatic aircraft systems from overpressure conditions. When system pressure exceeds the set threshold—caused by regulator faults or thermal expansion—the valve vents excess fluid or gas and then reseats automatically. This prevents downstream component damage and system failure.

The valve conforms to applicable MS and NAS aerospace standards for reliability and performance. Installation and pressure adjustment must follow the aircraft maintenance manual and component manufacturer specifications to ensure proper system protection.

Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.

Frequently Asked Questions

What is the VALVE, RELIEF (P/N 9870038/B)?

The 9870038/B is a relief valve designed to protect hydraulic and pneumatic aircraft systems from overpressure conditions. When system pressure exceeds the set threshold—caused by regulator faults or thermal expansion—the valve vents excess fluid or gas and then reseats automatically.

What hydraulic fluid type is the 9870038/B compatible with?

Hydraulic component compatibility depends on the aircraft system design. Common aviation hydraulic fluids include MIL-PRF-5606 (mineral-based), MIL-PRF-83282 (synthetic), and Skydrol (phosphate ester). Verify the VALVE, RELIEF against your aircraft maintenance manual for fluid compatibility.

Does the 9870038/B come pressure-tested and certified?

Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The VALVE, RELIEF is available in: As Removed. Contact us for test documentation on your selected condition.

What is the turnaround time for hydraulic component orders?

In-stock hydraulic components ship same business day before 3 PM EST. We provide 24/7 AOG support at (904) 998-9101 for urgent hydraulic system needs. RFQ submissions are typically quoted within 24 hours.

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