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Parker 51 Connector Versions


bsenn
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As I understand it there are the following 51 aero connectors (for full size Mark I pens):

 

1) Threaded shroud, no O-ring groove.

2) Slip fit shroud, no O-ring groove, no shoulder for barrel recess.

3) Slip fit shroud, O-ring groove, no shoulder for barrel recess.

4) Slip fit shroud, O-ring groove, shoulder for barrel recess.

 

Did I miss any?

 

Is it correct that I can:

- Use an o-ring hood on a non-o-ring connector (without an o-ring of course)?

- Use a recessed barrel on a non-recessed connector?

 

If so, can I use Connector #2 to replace #2, #3, and #4 ?

 

How about using #2 to replace #1? Can I press fit a threaded shroud onto connector #2? Maybe sand down the diameter of the connector a little first?

 

Thanks,

Brian

One test is worth a thousand expert opinions.

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  • FarmBoy

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I would not sand or turn down the threads to use as a slip fit connector.

 

I suppose it is OK to swap parts in other instances to make a pen work.

 

Farmboy

 

PS: You are missing the Demi sizes.

San Francisco International Pen Show - The next great pen show is on schedule for August 27-28-29, 2021. If we all do what we need to do...you can Book your travel and tables and make SF 2021 the Return. 
 

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PS: You are missing the Demi sizes.

 

Yes, one thing at a time...

 

Thanks,

Brian

One test is worth a thousand expert opinions.

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