John Packer Rotor Valve Stop Arm Retaining Screw

Horn Replacement Parts

  • John Packer

    Rotor Valve Stop Arm Retaining Screw

    Screw used to attach the rotor stop arm to the rotor shaft. Used on various John Packer rotary valve instruments, including horns, trombones, bass trombones & tubas.

    The Stop Arm (also known as the Armature) is the piece that connects to the rotor shaft and moves the rotor back and forth. This screw holds it in place.

    • Category: Horn Replacement Parts
    • Item: 125701
    • Grade/Level:
    • Price: $6.55

    • (usually ships in 10 to 15 days)