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CASTROL

CASTROL Brayco Micronic 783

Braycote 776
Hydraulic Fluid, Petroleum Base, For Preservation and Operation

Brayco Micronic 783 Description
Castrol Brayco® Micronic 783 is a petroleum-based, low viscosity, ISO grade 15 red colored hydraulic and preservative fluid for aircraft and ordnance use. It is a blend of selected petroleum oils with additives which provide exceptionally good viscosity-temperature characteristics, good anti-wear properties, controlled rubber swell, good shear stability and excellent oxidation resistance. Castrol Brayco® Micronic 783 is an excellent corrosion preventative and provides a high degree of detergency to maintain clean systems.


Brayco Micronic 783 Uses
Castrol Brayco® Micronic 783 is designed for aircraft, ordnance and other general hydraulic use, and for preserving hydraulic components over a temperature range of -54ºC to 135ºC (-65ºF to 275ºF). It may be used as an operational preservative fluid for all tactical and support ordnance intended for use in MIL-PRF-5606 service. Castrol Brayco® Micronic 783 can be used in hydraulic systems of missile ground support equipment and is particularly suitable for use in systems with long periods of inactivity during service.

BRAYCO MICRONIC 783 Compatibility
Castrol Brayco® Micronic 783 is generally used with standard synthetic rubber "L". This petroleum base fluid may be used with conventional oil and grease resistant paints. Castrol Brayco® Micronic 783 as all other MIL-PRF-6083 fluids should only be mixed with MIL-PRF-5606, MIL-PRF-46170 Type I and MIL-PRF-83282 fluids. Specification Brayco Micronic 776RP meets stringent specifications that have been accepted as contractual requirements with various OEM users.

BRAYCO MICRONIC 776 Shelf Life
Brayco® Micronic 776RP has a maximum recommended shelf life of 6 years from date of manufacture. This shelf life assumes that the product is stored in its original unopened packaging in ambient temperature conditions.

BRAYCO MICRONIC 776RP Typical Properties

TYPICAL PROPERTIES TEST

METHOD

REQUIREMENTS

RESULTS

D 287

API Gravity, degrees

Report

32.6

Table 3

Specific Gravity 16ºF/16ºC (60ºF/60ºF)

Report

0.862

Table 8

Pounds Per Gallon @ 16ºC (60ºF)

Report

7.18

D 445

Viscosity @

- 40ºF (-40ºC),cSt

20°F (-7°C), cSt

100ºF (38ºC), cSt

150°F (65°C), cSt

210ºF (99ºC), cSt

 

Report


Report


25-27


Report


Report



12,000


290


25.8


10.2


4.84

D 2270

Viscosity Index

Report

114

D 97

Pour Point, ºF (ºC)

-5 (-21) Maximum

-15 (-26)

D 92

Flash Point, COC, ºF (ºC)

390 (198) Minimum

414 (212)

D 1744

Water, KFR, ppm

150 Maximum

50

FTM 3603

Rubber Swell

160 hours @ 168ºF (76ºC), %

Report

14

D 130

Copper Strip Corrosion 72 hours @ 212ºF (100ºC)

Report

1b

FTM 5329

Corrosion Protection HC, Sandblasted Panels, 20 hours

Pass

Pass

FTM 5322

Corrosivity, 10 Days

Pass

Pass

FTM 3009

Particulate Contamination per 100 ml

5 - 15 Microns

16 - 25 Microns

26 - 50 Microns

51 -100 Microns

>100 Microns

 

 

10,000 Maximum

1,000 Maximum

150 Maximum

20 Maximum


5 Maximum

 

 

6,000

100

30

4


0