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Old 07-24-2020, 01:14 PM
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Default Small doo-dad at bottom of recoil shield...

Hello,
I have a model 65-4 that has a worn part on the frame. It is what I always understood to be the cylinder stop. Although I realize that that name may apply to the part in the frame in the cylinder opening. Or is it the frame lug? The part Iím concerned with literally stops the cylinder from going backwards when opened and the ejector rod is depressed. It is worn down (I bought it used two years ago) and sometimes the cylinder will go back beyond that point and get stuck.
I have searched the web for a good view of the left side of a Smith revolver and shocking cannot find anything with a detailed left side schematic. It appears to be pressed in. But it probably is the other side of one of the frame screws.
Is it easily replaceable? Once the side plate and internals are removed?
Thanks!
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Old 07-24-2020, 01:24 PM
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It's called the frame lug.

There is a thread on the subject.

https://www.google.com/url?sa=t&sour...=1595611391313
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Old 07-24-2020, 01:36 PM
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Before the frame design revisions, the "small doo-dad" or frame lug was a pressed in /peened in part that functioned as you described, to capture the cylinder when it is swung out of the frame window.

Photos show the frame lug on my model 19-3, and the interior view....showing the pin base of the lug just to the rear of the trigger stem inside a de-milled 686.

The lug sits in a small cavity in the frame and can be replaced with a new lug if necessary. Minor fitting is usually required, including "re-peening" or staking the new part in place.





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Last edited by armorer951; 07-24-2020 at 02:09 PM.
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Old 07-24-2020, 01:49 PM
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Thanks, for both replies. After looking again, I see that it not across from any frame screw and is pressed in. I havenít actually looked at it in a while and just remembered to ask the question. It seems that Numrich might have this part, while Midway and Brownells shows them out of stock or discontinued. I looked for parts while looking for diagrams before posting my question.
Thanks again.
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Old 07-25-2020, 03:14 PM
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Wow I learned something new. I had no idea that wasn't a machined part of the frame.
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Old 07-25-2020, 04:26 PM
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Quote:
Originally Posted by pmanton View Post
Wow I learned something new. I had no idea that wasn't a machined part of the frame.
ME TOO..... Who'da thunk?

Ceapea, you might want to get the actual part number from a schematic of your gun, then call S&W customer service to order the part.

J.
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Old 07-25-2020, 04:34 PM
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OEM number for the stainless K and L frame lug (aka: "doo-dad") is 0766701. Blued is 0310101
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Old 07-25-2020, 04:50 PM
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There you go...... ask, and you shall receive....
:-)
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Old 07-25-2020, 05:10 PM
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If all else fails, google Jack First for parts for older S$W's.
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Old 07-25-2020, 05:17 PM
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Quote:
Originally Posted by pmanton View Post
Wow I learned something new. I had no idea that wasn't a machined part of the frame.
Out of curiosity, I checked my snubs. The frame lug on my 642-1 is integral with the frame, but a press-fit on my 642ND.
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Old 07-25-2020, 05:21 PM
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Not saying your frame lug ISN'T worn, but I once fixed one that was loose in the frame, and would turn sightly and then it would bind the cylinder.
I removed it, cleaned it and the frame, and red loctited it, as well as pinging it. Just made sure you have it in the correct position before you stack it. Look at the picture above.
Try it to see if it is loose, may not need a new part.
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Old 07-25-2020, 07:39 PM
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I have taken a revolver with a worn frame lug and tapped the lug out with a punch just a schooch. Worked fine after that.
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Old 08-01-2020, 12:01 PM
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Quote:
Originally Posted by armorer951 View Post
OEM number for the stainless K and L frame lug (aka: "doo-dad") is 0766701. Blued is 0310101
Thanks for that info!!
Numrich has a lug, listing several frames it will work on. Mine is a 65-4. They list the 65-5, but not the -4 and the 64-5 (which I also have) as well as several others.
Is there any difference between the Lugs/frames on the 65-4 and -5? They show a product number, but nothing like the part #ís you listed. Only $6.75. Iíve got it in my cart right now...
Thanks.
Frame Lug | Gun Parts Corp.

Edit:
Never mind. I looked at the (several) schematics listed under the part. It appears that the same part fits many different -model frames.
Thanks again!
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Old 08-01-2020, 01:28 PM
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To retired2006 and Muley,
I too have thought of that. Both the part in question on this gun (65-4) and the one on my 64-5 look to be equally worn (used?). The lug on the 65-4 is below flush ever so slightly...I’m guessing .005”-.010”. Hard to say, where as the fitment on my 64-5 is perfectly flush with the frame.
So I will try tapping it to see if that works. If not, I’ve ordered two of the lugs along with some other parts I had waiting in my cart for a year or so.
I did order the book in the thread that Kurusu linked in a post above. Mine is coming from MidwayUSA along with some other parts for S&W revolvers.
Apparently there are two different descriptions of the book out there. Amazon has one showing 150 some odd pages. While others list 207 pg. (Midway). Both claim to be the 5th edition. So, if you’re looking for this book, check the pg count.
Thanks again!!
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Old 08-01-2020, 03:43 PM
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I have more than one that looks like someone took a grinder to it after installation. If'n it's tight, keeps the cylinder from falling out why fool with it. Joe
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Old 08-01-2020, 05:43 PM
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Quote:
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I have more than one that looks like someone took a grinder to it after installation. If'n it's tight, keeps the cylinder from falling out why fool with it. Joe
If you read my first post, it doesnít keep the cylinder from falling out. Well, it doesnít fall out, but it sometimes goes back, beyond the stop, and gets stuck. Not good. Not correct.
Thatís why...
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Old 08-01-2020, 06:06 PM
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Quote:
Originally Posted by ContinentalOp View Post
Out of curiosity, I checked my snubs. The frame lug on my 642-1 is integral with the frame, but a press-fit on my 642ND.
Evolution. S&W frames eventually went to the integral style with cyl window reinforcement.
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