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Sourcing brake fluid

R

RNB

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I am searching for a local source of Royco 782 and/or another MIL PRF 83282 fluid appropriate for my brakes.
Spruce only has large quantities.
Vans order shipment pending but I was hoping for quicker availability due to travel plans. I ordered from Vans early am on July 3rd but dont think they shipped it overnight yet.

Are there local sources of this fluid or is it super specialized? I've looked at one auto supplier and tractor supply online. Where should I be looking?
Thanks.
 
RNB said:
I am searching for a local source of Royco 782 and/or another MIL PRF 83282 fluid appropriate for my brakes.
Spruce only has large quantities.
Vans order shipment pending but I was hoping for quicker availability due to travel plans. I ordered from Vans early am on July 3rd but dont think they shipped it overnight yet.

Are there local sources of this fluid or is it super specialized? I've looked at one auto supplier and tractor supply online. Where should I be looking?
Thanks.
Click to expand...
Spruce has Aeroshell 31 in a 1 gallon can. Same stuff.
 
Quarts available here: I ordered some last month on a Monday, received tracking the same day, and received Fedex delivery on Wednesday 2 days later.
pilotjohn.com

Shop Royco 782 MIL-PRF-83282 Synthetic Hydraulic Fluid - 1 Quart Container - Case is 24 Quarts | Pilot John

Upgrade your hydraulic systems with Royco 782 MIL-PRF-83282 in a convenient 1-quart container. This high-performance synthetic fluid delivers exceptional oxidative stability, anti-wear protection, and corrosion inhibition. Available now at Pilot John International—your go-to source for...
pilotjohn.com pilotjohn.com
 
MIL-PRF-83282 and MIL-H-5606/MIL-PRF-H-5606 are completely compatible and can be mixed in a system. Major differences are in flammability and low temperature limits, and synthetic vs mineral based. Unless you are going to be operating below -40F, use either one.
 
My plane is AOG awaiting an opening at a certified shop that I suspect is not familiar with experimental. I am trying to get something that they would not put up any resistance to.
 
RNB said:
My plane is AOG awaiting an opening at a certified shop that I suspect is not familiar with experimental. I am trying to get something that they would not put up any resistance to.
Click to expand...
Yeah, that makes sense at a certified shop…
 
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RNB said:
My plane is AOG awaiting an opening at a certified shop that I suspect is not familiar with experimental. I am trying to get something that they would not put up any resistance to.
Click to expand...
Yeah a certified shop only uses what the FAA allows in certified planes. Mobile 1 doesn't come with form 8130
 
Since it sounds like your plane is stuck away from home at a trance shop, why not just have them put in whatever they use, then change it when you get back to your own hangar and mechanic. Probably the easiest way to get out of there - and you don’t; have to convince them to do something they aren’t used to doing.
 
cvairwerks said:
MIL-PRF-83282 and MIL-H-5606/MIL-PRF-H-5606 are completely compatible and can be mixed in a system. Major differences are in flammability and low temperature limits, and synthetic vs mineral based. Unless you are going to be operating below -40F, use either one.
Click to expand...
Flammability characteristics probably not an issue until it becomes a major issue. Thats one reason Vans and brake manufactures recommend:

https://skygeek.com/radcolube-fr282-hydraulic-fluid-quart.html

skygeek.com

RADCOLUBE® FR257 Red MIL-PRF-87257D Spec Fire-Resistant Synthetic Low Temperature Hydraulic Fluid - Quart Can

Order a quart-size can of RADCOLUBE FR257 Synthetic Hydraulic Fluid at SkyGeek and save on the premium aviation fluids you need for your aircraft.
skygeek.com skygeek.com

Both considerably higher FP than 5606.
 
dmattmul said:
Flammability characteristics probably not an issue until it becomes a major issue. Thats one reason Vans and brake manufactures recommend:

https://skygeek.com/radcolube-fr282-hydraulic-fluid-quart.html

skygeek.com

RADCOLUBE® FR257 Red MIL-PRF-87257D Spec Fire-Resistant Synthetic Low Temperature Hydraulic Fluid - Quart Can

Order a quart-size can of RADCOLUBE FR257 Synthetic Hydraulic Fluid at SkyGeek and save on the premium aviation fluids you need for your aircraft.
skygeek.com skygeek.com

Both considerably higher FP than 5606.
Click to expand...
We flew with 5606 in the F-16 systems until 83282 was USAF approved. I've only seen 1 wheel fire on an F-16 or F-35 in more than 23 years of flight line operations, and that was due to a tire failure, resulting in the tire, wheel and brake assembly catching fire. Wouldn't have mattered if it was 83282 or 5606, with it being hot enough to consume the wheel assembly before it was put out.

Part of the reason that they are recommending the switch to 83282, is that 5606 is being phased out. It went inactive for new designs in 1996 and the only USAF aircraft still using it are B-52's and a few other "fast alert" aircraft that regularly operate in very cold climates.
 
Last edited:
RNB said:
I am searching for a local source of Royco 782 and/or another MIL PRF 83282 fluid appropriate for my brakes.
Spruce only has large quantities.
Vans order shipment pending but I was hoping for quicker availability due to travel plans. I ordered from Vans early am on July 3rd but dont think they shipped it overnight yet.

Are there local sources of this fluid or is it super specialized? I've looked at one auto supplier and tractor supply online. Where should I be looking?
Thanks.
Click to expand...
Pilot Johns has Royco 782 in quarts. I just got some.
https://pilotjohn.com/new/royco/782-1qt
 
Ironflight said:
Since it sounds like your plane is stuck away from home at a trance shop, why not just have them put in whatever they use, then change it when you get back to your own hangar and mechanic. Probably the easiest way to get out of there - and you don’t; have to convince them to do something they aren’t used to doing.
Click to expand...

I am willing to do whatever it takes to get out of there!
 
cvairwerks said:
We flew with 5606 in the F-16 systems until 83282 was USAF approved. I've only seen 1 wheel fire on an F-16 or F-35 in more than 23 years of flight line operations, and that was due to a tire failure, resulting in the tire, wheel and brake assembly catching fire. Wouldn't have mattered if it was 83282 or 5606, with it being hot enough to consume the wheel assembly before it was put out.

Part of the reason that they are recommending the switch to 83282, is that 5606 is being phased out. It went inactive for new designs in 1996 and the only USAF aircraft still using it are B-52's and a few other "fast alert" aircraft that regularly operate in very cold climates.
Click to expand...
Unfortunately multiple Vans wheel fires reported on this web site. 2 in the last 2 weeks. I have not had one but prefer the added safety margin with the new fluids, 219 F with 5606 vs 350 F with 257.

My brake supplier has been recommending

https://skygeek.com/radcolube-fr257-hydraulic-fluid-quart.html

For now over 10 years.
 
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I'm getting ready for a condition inspection and was changing to Royco782 + Viton seals. When I felt the fluid, I immediately knew it was automotive brake fluid. How do you guys recommend flushing? I'm considering a drain and refill twice with the Royco fluid. Thoughts? So far, I just closed the bleeder and haven't gone any further.
 
bjdecker said:
^^ This ^^ :)

Seems to be more of an issue with the A models, which makes sense as you need a little braking action to drive the nosewheel.
Click to expand...

Not the mention Vans supplied brakes with the lowest kinetic energy rating in the Cleveland catalog for all the legacy models.
 
DanH said:
Not the mention Vans supplied brakes with the lowest kinetic energy rating in the Cleveland catalog for all the legacy models.
Click to expand...
Same for the Matco WHE-51 brakes that came with my 2019 kit. They are rated for 118K ft-lb. At 1800 pounds you exceed that at 63 mph.
 
FORANE said:
Quarts available here: I ordered some last month on a Monday, received tracking the same day, and received Fedex delivery on Wednesday 2 days later.
pilotjohn.com

Shop Royco 782 MIL-PRF-83282 Synthetic Hydraulic Fluid - 1 Quart Container - Case is 24 Quarts | Pilot John

Upgrade your hydraulic systems with Royco 782 MIL-PRF-83282 in a convenient 1-quart container. This high-performance synthetic fluid delivers exceptional oxidative stability, anti-wear protection, and corrosion inhibition. Available now at Pilot John International—your go-to source for...
pilotjohn.com pilotjohn.com
Click to expand...
This is where I get it by the quarts.
 
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