Used on globe valve, serial number 182809.001. 0.875" inside diameter packing set - standard vee, 0.88 in stem packing assy comprised of 2 male rings (thickness of 0.073 in & p/n 01151) , 2 female rings (thickness of 0.187 in & p/n 01152) , & 2 vee/ intermediate rings (thickness of 0.083 in & p/n 01150)