ack! did something stupid

[Sitzman]

Hey all.. I was troubleshooting a no-start problem on my 86 5ks and i
disconnected a part (Bosch 2437020005) located in the hood by the
passenger side headlight (connected to where all the gaslines to the
injectors go.)

Anyways, there were two rubber washers (very small) and one of them has
gotten lost.. does anyone know the audi p/n for that missing washer? (I
believe it was red -- the one that I am holding is green.)

Thanks!
-Andrew S.