[Snaggletooth]

Just got an email from a friend asking me to assist in locating a cylinder pin for a Navy Arms .36 cal 51 . He said he had exhausted his resources to locate one. If anyone has one or knows where to locate one, please post or email me.

[bigbadgun]

try vti I beleive that Navy arms imported from Uberti

[mykeal]

Navy Arms imported from both Pietta and Uberti at various times. It will be necessary for your friend to identify the manufacturer.

Unfortunately, that may not help, however. VTI does not stock either the frame or the base pin for Uberti's .36 cal 1851 Navy. They do stock, or at least show in their catalog, the Pietta and ASM base pins; it's part no. 21 on either of these lists:
https://www.vtigunparts.com/ab2240000Equick/shopdisplayproducts.asp?id=67&cat=Pietta+1851+Navy+%2E36cal%2C+%2E44cal
https://www.vtigunparts.com/ab2240000Equick/shopdisplayproducts.asp?id=124&cat=ASM+1851+Navy

Dixie Gun Works may also be a source; they don't list a manufacturer, so perhaps the part is a 'universal fit-all':
http://www.dixiegunworks.com/product_info.php?cPath=22_434_435_440&products_id=1070

[bigbadgun]

I wasent sure about Pietta but I was sure about Uberti