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Posted: 4/29/2020 10:43:43 AM EDT
A buddy gave me this. An unused tube of 33. Is this good to use for AR receiver threads?
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Posted: 4/28/2020 10:26:32 PM EDT
[#1]
Yes.
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Posted: 4/28/2020 10:31:17 PM EDT
[#2]
Just to be clear, the manual calls for Aeroshell 33ms (now Aeroshell 64) and 33 isn't the same thing; I think 33 lacks moly, but not 100% sure. I only draw the distinction because some don't realize 33ms was renamed to 64 and assume 33 is what they want to follow the mil-spec.
That said, it'd be fine. |
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Posted: 4/28/2020 10:35:54 PM EDT
[#3]
I here lots of people talk about this grease, they say this is the stuff to use on the barrel nut threads. I have not heard why this is better or what about it makes it better? What about a moly type grease or a high pressure bearing type grease?
Not trying to stir up shit, I am just looking for information Thanks |
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Posted: 4/28/2020 10:47:50 PM EDT
[#4]
Quote HistoryQuoted: I here lots of people talk about this grease, they say this is the stuff to use on the barrel nut threads. I have not heard why this is better or what about it makes it better? What about a moly type grease or a high pressure bearing type grease? Not trying to stir up shit, I am just looking for information Thanks Literally any quality EP Moly grease will work. |
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Posted: 4/28/2020 10:51:01 PM EDT
[#5]
Quote HistoryQuoted: Just to be clear, the manual calls for Aeroshell 33ms (now Aeroshell 64) and 33 isn't the same thing; I think 33 lacks moly, but not 100% sure. I only draw the distinction because some don't realize 33ms was renamed to 64 and assume 33 is what they want to follow the mil-spec. That said, it'd be fine. 5% Molybdenum disulphide added for 33MS. |
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Posted: 4/28/2020 10:54:31 PM EDT
[#6]
So what is the possible issue if you use the wrong grease ?
Just put two uppers together and used whatever the brown grease I have for the Garand is. 
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Posted: 4/28/2020 11:05:44 PM EDT
[#7]
Quote HistoryQuoted: So what is the possible issue if you use the wrong grease ? Just put two uppers together and used whatever the brown grease I have for the Garand is. The grease is really an anti seize method, less of a functional reason. That way you can unscrew everything much easier later on down the road. With that said, I used tetra grease for my builds as recommended by Fulton Armory in their book. |
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Posted: 4/28/2020 11:36:15 PM EDT
[#8]
Quote HistoryQuoted: The grease is really an anti seize method, less of a functional reason. That way you can unscrew everything much easier later on down the road. With that said, I used tetra grease for my builds as recommended by Fulton Armory in their book. Quote HistoryQuoted: Quoted: So what is the possible issue if you use the wrong grease ? Just put two uppers together and used whatever the brown grease I have for the Garand is. The grease is really an anti seize method, less of a functional reason. That way you can unscrew everything much easier later on down the road. With that said, I used tetra grease for my builds as recommended by Fulton Armory in their book. Torque values in the TM are based on greased threads. TVs will not be the same on dry fittings. Grease prevents galling of fittings. |
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Posted: 4/28/2020 11:58:35 PM EDT
[#9]
Quote HistoryQuoted: Torque values in the TM are based on greased threads. TVs will not be the same on dry fittings. Grease prevents galling of fittings. This is my understanding, has to do with the torque values. |
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Posted: 4/29/2020 12:02:53 AM EDT
[#10]
That is the wrong grease, it isn't the 33ms.
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Posted: 4/29/2020 12:19:16 AM EDT
[#11]
Quote HistoryQuoted: So what is the possible issue if you use the wrong grease ? Just put two uppers together and used whatever the brown grease I have for the Garand is. Evidently products containing graphite (and possibly other additives depending on the specific components in question) can promote galvanic corrosion between dissimilar metals such as the receivers threads and (most commonly) steel barrel nut, also the receiver "snout" id and steel barrel extension. Anodizing has electrical insulating properties but only if it is not compromised, seasoning threads by repetitively tightening and loosening a steel barrel nut on anodized aluminum threads is not the ideal way to maintain the integrity of the anodizing imo and I would not trust anodizing as a sole means of preventing galvanic corrosion in this application personally. Thread fatigue, galling, corrosion and inaccurate torque values are all possible with use of improper lubricants. |
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Posted: 4/29/2020 12:29:45 AM EDT
[#12]
Galvanic corrosion is a reaction formed when two unlike metals come in contact with electrolytes in an electrochemical rection. This reaction is known as galvanic corrosion. This corrosion occurs when there is the presence of bimetallic couple in between dissimilar metals within the solution or electrolyte. Without all these components, galvanic corrosion will not take place.
The most common electrolytes are chloride as well as contaminants with chloride like: •Road salts •Seawater •Cleaning agents |
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Posted: 4/29/2020 1:46:36 AM EDT
[#13]
Quote HistoryQuoted: Galvanic corrosion is a reaction formed when two unlike metals come in contact with electrolytes in an electrochemical rection. This reaction is known as galvanic corrosion. This corrosion occurs when there is the presence of bimetallic couple in between dissimilar metals within the solution or electrolyte. Without all these components, galvanic corrosion will not take place. The most common electrolytes are chloride as well as contaminants with chloride like: •Road salts •Seawater •Cleaning agents Ahh..but according to the Federal Aviation Administration (FAA) Advisory Circular AC43.13-1B ACCEPTABLE METHODS, TECHNIQUES, AND PRACTICES - AIRCRAFT INSPECTION AND REPAIR section 6-90 (d) "d. Graphite should not be used as a lu- bricant for any component. Graphite is ca- thodic to all structural metals and will generate galvanic corrosion in the presence of moisture, especially if the graphite is applied in dry form." In subpart C they even go as far as to say "c. Do not mark on any metal surface with a graphite pencil" The document can be found here in PDF format. https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentid/99861 |
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Posted: 4/29/2020 7:25:26 AM EDT
[#14]
Will it be ok? Probably. If it were my OCD, I'd buy the right stuff. Plus I'm really not a fan of lithium grease. You can buy enough to build 25 rifles from multiple sources for under $10. I think that I might even still have some in stock.
You also have a second option. You could be like Colt circa 2011 and not use any grease. The worst that that would happen would be that you'd have to cut the barrel nut assembly off of the receiver. Ask me how I know ..... |
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Posted: 4/29/2020 8:03:20 AM EDT
[#15]
Quote HistoryQuoted: Literally any quality EP Moly grease will work. This^ Actually, the cheap STP Moly-EP has better specs. I just use it. But as long as it’s a Moly grease and NOT a graphite grease, you should be good to go. |
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Posted: 4/29/2020 9:16:56 AM EDT
[#16]
Quote HistoryQuoted: This^ Actually, the cheap STP Moly-EP has better specs. I just use it. But as long as it’s a Moly grease and NOT a graphite grease, you should be good to go. Quote HistoryQuoted: Quoted: Literally any quality EP Moly grease will work. This^ Actually, the cheap STP Moly-EP has better specs. I just use it. But as long as it’s a Moly grease and NOT a graphite grease, you should be good to go. I've been using a moly, PTFE, and graphite mix for YEARS without issue. The issue of galvanic corrosion is completely overblown for barrel nuts. The only place I regularly see galvanic corrosion occur is with cheap ass detents that are NOT cadmium plated. |
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Posted: 4/29/2020 9:39:26 AM EDT
[#17]
Quote HistoryQuoted: I've been using a moly, PTFE, and graphite mix for YEARS without issue. The issue of galvanic corrosion is completely overblown for barrel nuts. The only place I regularly see galvanic corrosion occur is with cheap ass detents that are NOT cadmium plated. Quote HistoryQuoted: Quoted: Quoted: Literally any quality EP Moly grease will work. This^ Actually, the cheap STP Moly-EP has better specs. I just use it. But as long as it’s a Moly grease and NOT a graphite grease, you should be good to go. I've been using a moly, PTFE, and graphite mix for YEARS without issue. The issue of galvanic corrosion is completely overblown for barrel nuts. The only place I regularly see galvanic corrosion occur is with cheap ass detents that are NOT cadmium plated. Agreed! Funny that you brought it up, one of my rifles I assembled many moons ago with a cheap PSA LPK had a case of the frosty detents. I was disturbed, for sure. I have pulled many barrels from years of use, no issues with corrosion. |
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Posted: 4/29/2020 9:51:18 AM EDT
[#18]
Quote HistoryQuoted: Just to be clear, the manual calls for Aeroshell 33ms (now Aeroshell 64) and 33 isn't the same thing; I think 33 lacks moly, but not 100% sure. I only draw the distinction because some don't realize 33ms was renamed to 64 and assume 33 is what they want to follow the mil-spec. That said, it'd be fine. This |
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Posted: 4/29/2020 9:53:40 AM EDT
[#19]
Quote HistoryQuoted: Agreed! Funny that you brought it up, one of my rifles I assembled many moons ago with a cheap PSA LPK had a case of the frosty detents. I was disturbed, for sure. I have pulled many barrels from years of use, no issues with corrosion. Quote HistoryQuoted: Quoted: Quoted: Quoted: Literally any quality EP Moly grease will work. This^ Actually, the cheap STP Moly-EP has better specs. I just use it. But as long as it’s a Moly grease and NOT a graphite grease, you should be good to go. I've been using a moly, PTFE, and graphite mix for YEARS without issue. The issue of galvanic corrosion is completely overblown for barrel nuts. The only place I regularly see galvanic corrosion occur is with cheap ass detents that are NOT cadmium plated. Agreed! Funny that you brought it up, one of my rifles I assembled many moons ago with a cheap PSA LPK had a case of the frosty detents. I was disturbed, for sure. I have pulled many barrels from years of use, no issues with corrosion. Drives me insane. Everyone jumps up and down about galvanic corrosion in regards to grease on the barrel nut - yet completely ignores the very likely galvanic corrosion that can occur that WILL impact weapon performance. I think it's yet another case of hens cackling about something they know little about. |
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Posted: 4/29/2020 10:08:06 AM EDT
[#20]
Quote HistoryQuoted: > hens cackling |
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Posted: 4/29/2020 10:43:43 AM EDT
[#21]
Topic Moved
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Posted: 4/29/2020 11:03:26 AM EDT
[#22]
Quote HistoryQuoted: Just to be clear, the manual calls for Aeroshell 33ms (now Aeroshell 64) and 33 isn't the same thing; I think 33 lacks moly, but not 100% sure. I only draw the distinction because some don't realize 33ms was renamed to 64 and assume 33 is what they want to follow the mil-spec. That said, it'd be fine. I think you're correct. I, of course, bought this same tube when I built mine (before 33ms was changed to 64). So now I have a full tube of the wrong grease. I used it anyway. |
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Posted: 4/29/2020 11:08:06 AM EDT
[#23]
Quote HistoryQuoted: Quote HistoryQuoted: Quoted: > hens cackling You know I'm right lol |
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Posted: 4/29/2020 11:53:08 AM EDT
[#24]
Quote HistoryQuoted: You know I'm right lol Quote HistoryQuoted: Quoted: Quoted: > hens cackling You know I'm right lol Undoubtedly man. |
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Posted: 4/29/2020 5:14:16 PM EDT
[#25]
10 years on a 6721 upper, Used loctite 271 (red) everything still fine. IIRC I did the extension and threads.
per JP instructions. |
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Posted: 4/29/2020 5:33:47 PM EDT
[#26]
I just used Amsoil red general purpose lithium grease to assemble an upper. Am I going to die?
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Posted: 4/29/2020 5:48:46 PM EDT
[#27]
Not this shit again.
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Posted: 4/29/2020 5:57:09 PM EDT
[#28]
Quote HistoryOriginally Posted By wingsnthings: I just used Amsoil red general purpose lithium grease to assemble an upper. Am I going to die? Welcome to life, no one gets out alive. |
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