1989 GMC - 5.7: Fuel Supply TBI Fitting Gasket
 

Help. Anybody know the part number and where to source. Need a Teflon
flat gasket (seal) that fits on the end of the GM fuel inlet fitting. The seal interfaces with the TBI and fitting - which in turn fits the Saginaw 16mm x 1.5 fuel line fitting. I've found a GM kit called "Nut kit with gaskets" that contains both the inlet and return fittings - both with the Teflon gaskets in question.
The kit lists for $25 to $48. All I need is the gasket - probably a 10 cent part. Guess if nobody has a part number to source the gasket - I'll spend the dough and buy the kit. Thanks In Advance for any HELP!