SKYDROL (P/N 1qt-500b-4) - New Surplus

Eastman Skydrol 500B-4 is a phosphate-ester, fire-resistant hydraulic fluid packaged in a 1-quart container. This aviation-grade fluid meets Boeing BMS 3-11 Type IV specification and is widely used in commercial and corporate aircraft hydraulic systems. The 500B-4 formulation provides superior thermal stability and fire resistance compared to mineral-based hydraulics, making it essential for modern aircraft where safety margins demand non-flammable fluids.

Use for servicing and topping off aircraft hydraulic reservoirs and system components. Never mix with mineral or synthetic hydrocarbon fluids—maintain fluid purity per aircraft maintenance manual procedures and safety data sheet guidelines.

What is the SKYDROL (P/N 1qt-500b-4)?

Eastman Skydrol 500B-4 is a phosphate-ester, fire-resistant hydraulic fluid packaged in a 1-quart container. This aviation-grade fluid meets Boeing BMS 3-11 Type IV specification and is widely used in commercial and corporate aircraft hydraulic systems.

What hydraulic fluid type is the 1qt-500b-4 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 SKYDROL against your aircraft maintenance manual for fluid compatibility.

Does the 1qt-500b-4 come pressure-tested and certified?

Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The SKYDROL is available in: New Surplus. 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.