95021747 is an OEM separator stem o-ring that fits on the Ingersoll Rand R4-11 rotary screw air compressors. There are two o-rings that are used to seal the separator stem 24153298 to the airend assembly. 95021747 is the lower o-ring that sits on the bottom closest to the manifold assembly.
If you are in need of the upper o-ring that sits above this part, you would want to purchase item # 95025466.
Part #: 39266077
Part #: 95025466
Part #: 24121212
Part #: 39329602
Part #: 38459582