Yamaha ZZ192300 (A0141160) Water Key Spring

For Tuba in Bb, tuba in C, tuba in Eb, tuba in F, euphonium and horn. 

Models in which it is used:  

BB-100S, BB-110S, YBB all series 1, 2, YBB-321, YBB-321(2), YBB-321S, YBB-621, YBB-621S, YBB-631, YBB-631S, YBB-632, YBB-632S, YCB-621, YCB-621S, YCB-822, YCB-822S, YEB all series 2 and 6, YEB-321, YEB-321S, YEB-381, YFB all 6 and 8 series, EP-100S, EP-100SA, YEP-201(2), YEP-201M, YEP-201MS, YEP-201S(2), YEP-202M, YEP-202MS, YEP-211(2) , YEP-211S(2), YEP-321(2), YEP-321S(2), YEP all series 6 and 8, YHR-567, YHR-567D, YHR-567GB, YHR-667, YHR-667VSL, YHR-668ND, YHR-671, YHR-671D, YHR-671DUL, YHR-671GD, YHR-671UL, YHR-869D, YHR-869GD, YHR-871, YHR-871D, YHR-871DUL, YHR-871GD and YHR- 871UL.