This synthetic assembly fluid is a concentrated methacrylate polymer solution in diester oil, designed to provide lubricity and a tacky film. It aids in assembling multi-component mechanisms and lubricates O-rings to prevent damage. Compatible with various lubricating oils, it enhances performance without compatibility issues in lubrication systems.
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Boeing Distribution (formerly Aviall)
Overview
Royco® HF-825 Synthetic Assembly Fluid and O-Ring Lubricant is a concentrated solution of methacrylate polymer in a synthetic diester oil, supplied as part number 825-1-75LB. Royco HF-825 is used as an assembly aid to stick-hold components in multi-component mechanisms such as gearboxes, pumps, and engine accessories, and to wet out or lubricate O-rings prior to installation to prevent chafing or tearing. Because HF-825 is commonly used as a viscosity index improver in lubricating oils, it is compatible with many oil-wetted areas and does not present compatibility concerns with those systems.
Features & Benefits
Tacky film for assembly: Provides stick-hold to help retain parts during assembly of gearboxes, pumps and accessories
O-ring lubrication and protection: Wet-out lubricant prevents chafing and tearing during O-ring installation
Ashless formulation: Does not produce deposits or coke in oil-wetted sections
Broad compatibility: Commonly used as a viscosity index improver so it is compatible with many lubricating oils
Used by OEMs: Employed and accepted by major airframe and engine manufacturers
Specifications
Appearance: Liquid
Colour: Yellow
Flash point: 397 °F
Density: 0.912 g/cm3
Dynamic viscosity: 225 - 425 mPa.s
Kinematic viscosity: 329 mm2/s at 212 °F
Technical Information
FAA Approval Code
N/R
Condition
New
CAGE Code
07950
Country of Origin
United States
Harmonized Tariff Schedule Code
2710193750
Lead Time (Days)
60
Shelf Life
Yes
Total Shelf Life (Days)
1825
Forecasted
Yes
Dimensions (L x W x H)
4.75 x 4.75 x 5.75
Package Weight
2.02 LB
Aircraft Makes
Boeing
Aircraft Models
767-200
747-400
Shipping Details
Hazmat Code
ZND
ECCN
EAR99
Schedule B
2710193750
8130-3 Eligible
No
Hazmat
No
Part Explosive
No
Buy now from
Boeing Distribution (formerly Aviall)
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
