Brayco 881 Hydraulic Fluid, MIL-PRF-87257

Castrol Brayco Micronic 881 is a fire-resistant, synthetic hydrocarbon-based hydraulic fluid formulated for low-temperature aircraft and missile hydraulic applications. Brayco Micronic 881 is a red-colored, ISO viscosity Grade 7 hydraulic fluid designed to provide low-temperature stability, controlled rubber swell, anti-wear protection, corrosion protection, and oxidation stability.

Business Aircraft Consumables supplies Brayco 881 hydraulic fluid for aircraft maintenance, MRO, hydraulic-system servicing, and other approved applications requiring a MIL-PRF-87257 fluid.

Brayco Micronic 881 Hydraulic Fluid

Brayco Micronic 881 is a synthetic hydrocarbon-base, fire-resistant hydraulic fluid designed for aircraft, missile, ordnance, and industrial applications where low-temperature hydraulic performance is required. The product is formulated to maintain stability at low temperatures while providing controlled rubber swell for extended seal life.

Castrol's current aviation product literature identifies Brayco Micronic 881 with MIL-PRF-87257F. MIL-PRF-87257 is the U.S. military performance specification for fire-resistant, low-temperature, synthetic hydrocarbon-base hydraulic fluid used in aircraft and missile hydraulic systems. The current DLA specification covers a temperature range of -54°C to +200°C.

Brayco 881 Features

• Low-temperature hydraulic performance for applications where low-temperature stability is important.
• Synthetic hydrocarbon base formulated for aviation hydraulic applications.
• Fire-resistant formulation meeting the applicable MIL-PRF-87257 requirements.
• Controlled rubber swell designed to help support long seal life.
• Low foaming characteristics for hydraulic-system operation.
• Anti-wear protection for hydraulic-system components.
• Corrosion protection to help protect system components.
• Oxidation stability for demanding hydraulic applications.

Brayco 881 Applications

Brayco Micronic 881 is designed as a low-temperature, fire-resistant hydraulic fluid for aircraft and missile applications. It is also used in ordnance and industrial hydraulic applications where the required specification and fluid characteristics are applicable.

MIL-PRF-87257 describes the fluid as a synthetic hydrocarbon-base hydraulic fluid for aircraft and missile hydraulic systems operating across a specified temperature range of -54°C to +200°C (-65°F to +392°F).

Always verify the applicable aircraft, component, equipment, or military technical documentation before selecting hydraulic fluid. A fluid meeting a particular military specification should not be assumed to be approved for every hydraulic-system application.

Brayco 881 Technical Characteristics

Brayco Micronic 881 is an ISO viscosity Grade 7 hydraulic fluid formulated specifically for low-temperature applications. Its formulation combines low-temperature stability with controlled seal swell, anti-wear performance, corrosion protection, low foaming, and oxidation stability.

Brayco 881 and MIL-PRF-87257

MIL-PRF-87257 is a U.S. military performance specification titled Hydraulic Fluid, Fire Resistant, Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile. The specification is currently active according to the Defense Logistics Agency's ASSIST database.

The specification establishes requirements for synthetic hydrocarbon-base hydraulic fluid intended for aircraft and missile hydraulic systems. It identifies the fluid under NATO Code H-538.

Castrol's current aviation literature lists Brayco Micronic 881 — MIL-PRF-87257F.

Specification revision matters. When a purchase order, aircraft program, government contract, or maintenance document calls for a particular revision of MIL-PRF-87257, confirm the required revision and certification paperwork before ordering.

Brayco 881 vs. MIL-PRF-5606 Hydraulic Fluid

Brayco 881 and MIL-PRF-5606 fluids are both used in aviation hydraulic applications, but they are different fluid types and specifications. Brayco 881 is a synthetic hydrocarbon-base fluid meeting MIL-PRF-87257, while MIL-PRF-5606 covers a different class of petroleum-based aviation hydraulic fluids.

Do not substitute one fluid for another based solely on viscosity or general aircraft use. The applicable aircraft or component documentation determines the approved hydraulic fluid.

Brayco 881 vs. MIL-PRF-83282 Hydraulic Fluid

MIL-PRF-87257 and MIL-PRF-83282 are separate military hydraulic-fluid specifications with different performance requirements and intended applications. Brayco Micronic 881 is identified by Castrol as a MIL-PRF-87257 product.

If an aircraft or component specifically calls for MIL-PRF-83282, do not substitute Brayco 881 unless the applicable manufacturer or technical documentation specifically authorizes the product.

Brayco 881 Shelf Life and Storage

Store Brayco Micronic 881 in accordance with the manufacturer's current storage and handling requirements. For a specific container, use the product labeling, lot information, packaging date, and current manufacturer documentation to determine the applicable shelf life.

Refer to the manufacturer's current Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for complete storage, handling, shelf-life, and safety requirements.

Brayco 881 Handling and Safety

Brayco Micronic 881 should be handled in accordance with the manufacturer's current Safety Data Sheet and applicable workplace safety requirements.

Review the current SDS before handling the product and use the personal protective equipment and handling procedures specified by the manufacturer.

Brayco Micronic 881 Documentation

Refer to the manufacturer's current documentation for complete technical and certification information:

• Brayco Micronic 881 Technical Data Sheet (TDS)
• Brayco Micronic 881 Safety Data Sheet (SDS)
• Current Castrol aviation product literature
• MIL-PRF-87257 and applicable revision
• Applicable aircraft, component, and equipment maintenance documentation

Ordering Brayco 881 Hydraulic Fluid

Business Aircraft Consumables supplies Brayco Micronic 881 hydraulic fluid for aircraft maintenance and MRO applications. BAC currently lists Brayco 881 in quart and 5 gallon sizes, subject to current inventory and availability.

Select the required package size above to check current pricing and availability.

For specification-controlled applications, verify the required MIL-PRF-87257 revision and certification requirements before placing an order.

Frequently Asked Questions

What is Brayco 881 hydraulic fluid?

Brayco 881, also known as Castrol Brayco Micronic 881, is a red, synthetic hydrocarbon-base, fire-resistant hydraulic fluid designed for low-temperature aircraft, missile, ordnance, and industrial applications. It is an ISO viscosity Grade 7 fluid.

What specification does Brayco 881 meet?

Castrol's current aviation product literature identifies Brayco Micronic 881 to MIL-PRF-87257F. The underlying MIL-PRF-87257 specification is currently active in the DLA ASSIST database.

What is the NATO code for MIL-PRF-87257 hydraulic fluid?

MIL-PRF-87257 hydraulic fluid is identified by NATO Code H-538.

What color is Brayco 881?

Brayco Micronic 881 is a red-colored hydraulic fluid.

What is Brayco 881 used for?

Brayco Micronic 881 is designed for low-temperature hydraulic applications in aircraft and missile systems and also has applications in ordnance and industrial equipment.

What temperature range is associated with MIL-PRF-87257?

The current MIL-PRF-87257 specification describes the fluid for use across a range of -54°C to +200°C (-65°F to +392°F). The applicable product and equipment documentation should be consulted for actual operating limitations.

Is Brayco 881 the same as MIL-PRF-87257?

Brayco Micronic 881 is a specific commercial hydraulic-fluid product qualified to the MIL-PRF-87257 specification. MIL-PRF-87257 is the military performance specification; Brayco Micronic 881 is the manufacturer's product.

Can Brayco 881 replace MIL-PRF-5606 hydraulic fluid?

Not automatically. MIL-PRF-87257 and MIL-PRF-5606 are different hydraulic-fluid specifications. Use the fluid specified or approved by the applicable aircraft, component, or equipment documentation.

Can Brayco 881 replace MIL-PRF-83282 hydraulic fluid?

Not automatically. MIL-PRF-87257 and MIL-PRF-83282 are separate hydraulic-fluid specifications. Verify the approved fluid against the applicable aircraft or component documentation before substituting products.