For Partner Chainsaws

Part Number: 505 23 91-51

Part Description: tank vent screw

Fits the Following Models:  Partner r420 r420t r420t r20 r20t r21 r21t r30 r440t p85

Detailed Condition Description: New old stock part.  Never used.  Item may be dusty from 30 years of storage.

Location: box 3