Castrol CASTROL-AERO-35-YELLOW (1-Usqt-Can)

Additional Product Information

Overview

Castrol Aero 35 is a high-performance MIL-PRF-6083F based ISO Grade 15 mineral hydraulic fluid designed for landing gear shock struts in aviation applications. Trusted by maintenance teams and MRO professionals, it reduces wear, corrosion, and stick-slip effects while maintaining reliable performance under extreme temperature conditions. Its formulation ensures smooth operation, enhanced component life, and operational efficiency during aircraft maintenance and AOG scenarios.

Key Technical Specs for Castrol Aero 35

• Type: Mineral-based hydraulic fluid with antiwear and corrosion inhibitors
• Size/Volume: Available in bulk supply and standard aviation packaging
• Color: Red (dyed, Douglas DPM 6177) or Yellow (undyed, Boeing BMS 3-32B, Type I)
• Viscosity/Consistency: ISO Grade 15; Kinematic Viscosity @100 C: 4.8 mm /s; @40 C: 13.8 mm /s; @-40 C: 650 mm /s; @-54 C: 3388 mm /s
• Viscosity Index: 326
• Flash Point: 230 F / 110 C
• Fire Point: 245 F / 118 C
• Pour Point: -85 F / -65 C
• Copper Corrosion: 1a (72 hrs @ 250 F / 121 C)
• Four Ball Wear Test: 0.45 mm scar
• Extreme Pressure Properties: Pass (Falex Pin & Vee Block test)
• Service Temperature: -65 F to 212 F / -54 C to 100 C
• Typical Uses: Landing gear shock struts, compatible with approved MIL-PRF-5606H and MIL-PRF-6083F fluids
• Shelf Life: Refer to manufacturer for storage and handling guidance

Approvals & Specifications

• Douglas Aircraft Specification DPS 3.334 (Red DPM 6177)
• Boeing Specification BMS 3-32B, Type I (Yellow undyed)
• Approved EP additive system for shock strut applications
• Compliance with MIL-PRF-6083F and compatible with MIL-PRF-5606H

Typical Aircraft MRO / AOG Applications

• Commercial and military aircraft landing gear shock struts
• Boeing 707, 727, 737, 757 series
• Douglas Aircraft models requiring DPM 6177 red hydraulic fluid
• Rapid turnarounds during AOG maintenance operations

Compatibility & Safety Notes

• Compatible with most seals, hoses, and paints used in shock struts and dispensing equipment
• Not fully compatible with phosphate-ester hydraulic fluids or synthetic gas turbine lubricants
• Use PPE when handling; avoid skin or eye contact
• Prevent contamination to maintain unique properties of Aero 35

Packaging & Procurement

• Available in standard aviation bulk containers and refill packs
• Store in a cool, dry place away from incompatible fluids
• Easy to pour and dispense using approved equipment
• Market-ready packaging for maintenance operations and field AOG support

Why Castrol Aero 35 is Chosen for AOG / MRO

• Provides reliable performance under extreme temperatures and high-stress landing gear operations
• Reduces component wear and maintenance downtime
• Compatible with multiple hydraulic systems for operational versatility
• Fast-acting fluid ideal for AOG scenarios where time is critical

Practical Suggestions for Your Team (AOG Mindset)

• Stock both red and yellow variants for compatibility with different aircraft models
• Train maintenance personnel on fluid handling and contamination prevention
• Keep dedicated dispensing equipment for Aero 35 to preserve fluid integrity
• Regularly inspect landing gear systems to optimize shock strut performance

Manufacture / Aviation Spec Codes

• Manufacturer: Castrol
• Product ID: Aero 35
• MIL/OEM Codes: MIL-PRF-6083F, MIL-PRF-5606H, Douglas DPM 6177, Boeing BMS 3-32B Type I

Alternative Names & Descriptions

• Aero 35 Red Hydraulic Fluid (Douglas DPM 6177)
• Aero 35 Yellow Hydraulic Fluid (Boeing BMS 3-32B, Type I)
• Castrol Landing Gear Shock Strut Fluid
• ISO 15 Mineral Hydraulic Fluid
• EP-Enhanced Aviation Hydraulic Oil