350031, Lister Petter Valve Cover Joint , used on the AC1 and the AD1 engines
This will be item number 32 in the Lister Petter drawing.
Government part number will be NSN 5330-01-101-8080
These engines were used in the BT400 heaters manufactured for the US Government by AerotechHerman Nelson BT 400-NEX Aerotech ID number was 2005276
