Depending on which parts, they may need to be made.
I have a single shot Springfield shotgun but there is no model number anywhere. It looks just like a the Stevens Model 94 and has several identical parts although I am not sure what series of the 94 it is.
try egunparts
You might find what you need at webdept@gunpartscorp.com .
numrich
I believe this is a Boito Era single barrel shotgun. Made 20-25 years ago. A cheap disposable shotgun. A lot of the parts are not hardened.
http://www.e-gunparts.com
it is a Stevens, parts are interchangeable...
The model is obsolete, however we have a good supply of parts for that model. sales@countrygunsmith.net
What model????
I have parts for that model. sales@countrygunsmith.net
It's a pretty common gun, so any gunsmith should have a source for parts.
I have this model gun however i know very little about it. EBAY e-gunparts.com is an awesome parts site