AeroShell Fluid 71
AeroShell Fluid 71 is a preservative-grade mineral hydraulic fluid designed for aircraft systems, offering enhanced corrosion protection, oxidation stability, and compatibility with MIL-spec aviation hydraulic components.
AeroShell Fluid 71
Preservative mineral hydraulic fluid for aircraft storage and test applications
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Mineral oil-based formulation with improved oxidation and corrosion resistance
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Excellent low-temperature performance (down to -54°C)
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Dyed red for easy identification and leak tracing
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Superclean filtered to protect sensitive hydraulic components
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Compatible with AeroShell Fluids 4, 31, 41, 51, and 61
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Intended for use with MIL-PRF-5606/DEF STAN 91-48 type synthetic rubber seals
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Not suitable with chlorinated solvent-cleaned systems due to corrosion risk
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Used for storage preservation and rig testing of hydraulic systems
Global Product Code: 001A0055
Application:
AeroShell Fluid 71 is a mineral-based preservative hydraulic fluid designed for use in aircraft systems, particularly for the preservation of hydraulic components during storage and for rig testing. It provides excellent corrosion inhibition, low-temperature operation, and is fully compatible with standard aviation fluids and elastomers used in MIL-PRF-5606-type systems.
Performance Features & Benefits:
- Corrosion Protection: Special additive package prevents metal corrosion during storage or limited operation.
- Oxidation Stability: Helps maintain system integrity over long-term exposure and prevents sludge formation.
- Wide Temperature Range: Effective operation from -54°C to +121°C, ensuring performance in diverse environments.
- Fluid Compatibility: Compatible with AeroShell Fluids 4, 31, 41, 51, and 61, and systems using MIL-PRF-5606 seals.
- Filtered & Dyed: Supplied superclean and dyed red for critical cleanliness and easy leak detection.
Main Application Areas:
- Preservation of aircraft hydraulic components in storage
- Test rigs for hydraulic systems using aviation mineral oils
- Hydraulic systems requiring compatibility with MIL-PRF-5606-type fluids
Specifications & Approvals:
- MIL-PRF-6083F (US)
- DEF STAN 80-142 (British)
- DCSEA 535/A (French)
- NATO Code: C-635
- Joint Service Designation: PX-26 (equivalent)
Environmental & Safety Information:
- AeroShell Fluid 71 is safe to handle under recommended practices.
- Do not allow contact with skin; use gloves and wash hands after handling.
- Do not release into drains, watercourses, or soil. Use authorised disposal methods.
- Safety Data Sheet (SDS) available via inquiry
Technical Specifications:
| Property | Typical Value | Method / Spec |
|---|---|---|
| Oil Type | Mineral | — |
| Colour | Red | — |
| Kinematic Viscosity @ -40°C | 525 mm²/s | ASTM D445 |
| Kinematic Viscosity @ -54°C | 2400 mm²/s | ASTM D445 |
| Kinematic Viscosity @ 40°C | 14.3 mm²/s | ASTM D445 |
| Flash Point (PMC) | 88°C | ASTM D93 |
| Pour Point | Below -59°C | ASTM D97 |
| Relative Density @ 15.6°C | 0.879 | ASTM D1298 |
| Total Acidity | 0.12 mgKOH/g | ASTM D664 |
| Water Content | 200 ppm | ASTM D1744 |
| Trace Sediment | 0.002 mg/L | — |
| Corrosion & Oxidation Stability (168 hrs @ 121°C) | Pass | ASTM D4636 |
| Viscosity Change @ 40°C | Pass | — |
| Acid Number Change | <0.2 mgKOH/g | — |
| Copper Corrosion | Pass (3a max) | ASTM D130 |
| Corrosion Inhibition | Pass | — |
| Low Temp Stability @ -54°C (72 hrs) | Pass | — |
| Shear Stability (Viscosity Change @ 40°C) | 0.06% | ASTM D5621 |
| Rubber Swell (L rubber) | 23% | — |
| Evaporation Loss (22 hrs @ 100°C) | 62% | — |
| Foaming Tendency | Pass | ASTM D892 |
| Steel on Steel Wear (scar diameter) | Pass (≤ 1.0 mm) | ASTM D4172 |
| Gravimetric Filtration | <0.5 mg/100 ml | — |
| Filtration Time | 12 min | — |
| Particle Count (5–25 µm) | 1170/100 ml | — |
| Particle Count (26–50 µm) | 90/100 ml | — |
| Particle Count (51–100 µm) | 10/100 ml | — |
| Particle Count (>100 µm) | 1/100 ml | — |
About Us
Providing industrial and metalworking solutions since 1991.