This throttle needle was mounted mainly on many older types of Bing carburetors, for example older Sachs, ILO FM48, FM60, G50, FP50, Zündapp KM48, Combimot and others.
The needle corresponds to origin no. Bing: 46-031
Length: approx. 30mm (excl. Cones), Ø = approx. 2mm