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Posted: 3/8/2012 9:25:36 AM EDT
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All,
I'm about to put a new barrel on my upper, and was wondering if i can use anti-sieze compound for the barrel nut? |
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Some info in a previous thread: http://www.ar15.com/forums/t_3_4/554059_Grease__Barrel_Nut__.html I bought Honda grease because it meets specs and there is a dealership near my house. |
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Quoted: Some do. I always have Permatex Anti-Seize on hand for other projects, but I prefer to use the approved grease for the barrel nut. I realize you didn't say you used Permatex Anti-Seize, but I just wanted to point out that it does contain graphite. Which seems to be the biggest "no-no" when it comes to choosing barrel nut grease. From the tech sheet: "The product contains a refined blend of aluminum, copper and graphite lubricants that can be used on slow moving parts." And while it IS mil-spec grease, its not the correct mil-spec for barrel nuts. (Mil-A-907E vs MIL-G-21164D, the latter is for barrel nuts) I received a small tube of Fel Pro C-100 from my dad. Its old as can be... and finding out about it was quite the challenge. This will probably help no one but if you can find yourself some C-100 it is a good choice for barrel nut application. Permatex Anti-Seize is what C-100 became, but they also changed the formula when Fel Pro sold that division to Permatex. Is anyone still reading this? |
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Quoted:
Quoted: Some do.
I always have Permatex Anti-Seize on hand for other projects, but I prefer to use the approved grease for the barrel nut. I realize you didn't say you used Permatex Anti-Seize, but I just wanted to point out that it does contain graphite. Which seems to be the biggest "no-no" when it comes to choosing barrel nut grease. From the tech sheet: "The product contains a refined blend of aluminum, copper and graphite lubricants that can be used on slow moving parts." And while it IS mil-spec grease, its not the correct mil-spec for barrel nuts. (Mil-A-907E vs MIL-G-21164D, the latter is for barrel nuts) I received a small tube of Fel Pro C-100 from my dad. Its old as can be... and finding out about it was quite the challenge. This will probably help no one but if you can find yourself some C-100 it is a good choice for barrel nut application. Permatex Anti-Seize is what C-100 became, but they also changed the formula when Fel Pro sold that division to Permatex. Is anyone still reading this? Wow. This post really adds to the confusion. Let's make it perfectly clear that I do not recommend Permatex Anti-Seize for the barrel nut. Just use the approved grease or something similar. If your going to be operating in/near a salt water environment or a corrosive environment stick to the mil spec. |
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Isn't Aeroshell 33MS considered the correct, easy to find and readily available online "milspec" grease for barrel nuts? Says it meets MIL-G-21164D, 6.6lb can for $95 and 14oz tubes for $12-16 http://www.varaceair.com/images/items/image1/grease33MS-1281757076723.jpg http://t2.gstatic.com/images?q=tbn:ANd9GcQ7IciSZAs3oj3ABby3CaU5wcC_CUJxxtlNxRgQnC5vD0SPxS-gsyKf-09G Yeah, that meets the spec. A tube is enough to keep a battalion armored up. |
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Isn't Aeroshell 33MS considered the correct, easy to find and readily available online "milspec" grease for barrel nuts? Says it meets MIL-G-21164D, 6.6lb can for $95 and 14oz tubes for $12-16 Yeah, that meets the spec. A tube is enough to keep a battalion armored up. No kidding, up until recently I used Coastal uniplex w/moly. I bought a 1lb tub (size of a small coffee can) from Auto Zone about four years ago for around $7. To this day with all the building I've done, I haven't even made a dint in the top two inches  .
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Use any Anti-Seize grease you have. What is anti-seize grease ? ~"Anti-Seize Compounds are designed to protect metal parts from rust, corrosion, galling and seizing. They ease assembly and disassembly of slip-fit, press-fit, and threaded joints and reduce friction and wear on critical operating equipment. Formulated for severe industrial environments, these products protect against high temperatures, heavy loads, chemicals, pounding and vibration."~ Some compounds don't do real well with aluminum (like ones containing graphite)...so check before you use anything your not sure of. |
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Quoted:
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Use any Anti-Seize grease you have. What is anti-seize grease ? ~"Anti-Seize Compounds are designed to protect metal parts from rust, corrosion, galling and seizing. They ease assembly and disassembly of slip-fit, press-fit, and threaded joints and reduce friction and wear on critical operating equipment. Formulated for severe industrial environments, these products protect against high temperatures, heavy loads, chemicals, pounding and vibration."~ Some compounds don't do real well with aluminum (like ones containing graphite)...so check before you use anything your not sure of. Yes, I've been using those products since the 1970's I had just never heard of "anti-seize grease".....must have been a typo. The anti-seize products that I've been around all contain conductors such as aluminum, copper and graphite which make these the polar opposite of what you should be using for the barrel nut. If your AR spends it's life between the safe and the range you can probably get away with using such products if that is how you roll. When you have dissimilar metals in contact especially in a corrosive environment salt air, salt water, who knows what, etc electrolysis is enhanced. We have a steel barrel nut and an aluminum receiver (anodizing doesn't count as a separation) That is why the mil spec is what it is. Even if you don't go to the altar for your grease, it's easy to avoid the wrong products. That NECO product mentioned above seems like a good solution and at a lower cost than Aero Shell 33MS. Other greases will work but may not have the moly content which is not a deal-breaker if you can't wait for the postman. |
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I thought my post was pretty clear, you just reiterated what I said.
Wow. This post really adds to the confusion. Let's make it perfectly clear that I do not recommend Permatex Anti-Seize for the barrel nut. IMHO, the way your post was crafted (with the quote, etc.), I felt opened the door to confusion. |
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