The oil circuit is connected to the oil pressure gauge on the instrument panel by means of a thin, rigid copper line (item 38).
Items. 40: A leather gasket is fitted into the over-coupling nut on the instrument cluster. This is available from eBay UK as many classic English cars are fitted with SMITHS gauges.
Outer diameter 11/32' (8.5 mm)
Inside diameter 9/64' (3.6 mm)
Washer Volvo 669360
Washer SMITHS 2K4936
Search for "Washer 2K4936 Smiths Gauge Oil Pressure Copper Pipe Leather Seal".
