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Brayco Micronic 881
Hydraulic Fluid, Petroleum Base, For Preservation and Operation

Brayco Micronic 881

 

Castrol Brayco Micronic 881

Hydraulic Fluid, Low Temperature Fire Resistant, Synthetic Hydrocarbon Base

Brayco Micronic 881 meets Mil-Spec MIL-PRF-87257

Description:

Castrol Brayco Micronic 881 is a fire resistant, synthetic hydrocarbon base, low temperature ISO viscosity Grade 7, red-colored hydraulic fluid for aircraft, missile, ordnance, and industrial use. It is specifically designed for low temperature applications where low temperature stability is particularly important. This product provides controlled rubber swell for long seal life, low foaming properties, excellent anti-wear, corrosion protection, and oxidation stability.

Uses:

Castrol Brayco Micronic 881 is designed as a low temperature fire resistant hydraulic fluid for aircraft and missile use, but has use in many industrial applications as well.

Temperature Range:

-54C TO 135C (-65F TO 275F)

Packaging:

Castrol Brayco Micronic 881 is highly filtered to micronic specifications. It is available in 55 gallon drums and 6/1 gallon cases. QC Lubricants carries Brayco Micronic 881 in 55 Gallon Drums only.

Specifications:

Castrol Brayco Micronic 881 meets all requirements and is fully qualified to:
 MIL-PRF-87257A. This fluid is identified by NATO Code Number H-538.

CASTROL BRAYCO MICRONIC 881 TYPICAL PROPERTIES:

TEST
METHOD
(ASTM)

DESCRIPTION

MIL-PRF-87257A
REQUIREMENT

RESULT

D 445

Kinematic Viscosity, cSt @ 100C (212F)

2.0 Minimum

2.21

Kinematic Viscosity, cSt @ 40C (104F) 6.7 Minimum 7.2
Kinematic Viscosity, cSt @ -40C (-40F)  550 Maximum 492
 
Kinematic Viscosity, cSt @ -54C (-65F) 2500 Maximum 2350
3 hrs soak @ -54C (-65F), cSt Report 2354
72 hrs soak @ -54C (-65F), cSt Report 2377

FTM 350

Evaporation, % wt 6.5 hrs @ 135C (275F)

20 Maximum

15

D 92

Flash Point, COC, C (F)

170 (338) Minimum

172 (342)

Fire Point, COC, C (F)

180 (356) Minimum

190 (375)

D 4172

Four-Ball Wear-Test, AWSD, mm 1 kg load

0.21 Maximum

 

0.12

 

Four-Ball Wear-Test, AWSD, mm 10 kg load 0.30 Maximum 0.22
Four-Ball Wear-Test, AWSD, mm 40 kg load 0.65 Maximum 0.56

D 664

Neutralization Number, mgKOH/gm

0.20 Maximum

0.11

D 1744

Water Content, ppm

100 Maximum

46

FTM 3458

Rubber Swell, "L", %

19.0 30.0

28

FTM 3465

Low Temperature Stability, 72 hrs @ -54C (-65F)

No gelling, sediment, clouding, separation or crystallization

Pass

Spec 4.4.5

High Temperature Stability
Viscosity Change @ 40C (104F), % 5 Maximum +2.25
Acid or Base No. Increase 0.1 Maximum 0.00
Precipitate or insoluble material

None

 

None

D 892

Foaming Characteristics
Sequence I, Foaming Tendency after 5 min blowing, mL 65 Maximum 25
Foaming Stability after 10 min, mL 0 0

D 2270

Viscosity Index

-------

115

Docs:
PDS
MSDS

As always, with Brayco 881, or any product you are seeking, please call us with any questions or concerns. Our dedicated staff is eager to hear from you.

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