You can send a request for quote for p/n 542 20 64-56 to Power Air Consulting using powerairconsulting.com. This part is manufactured by Husqvarna Outdoor Products Inc. The description of it is Parts Kit Safety Relief Valve. The national stock number associated with this part is 4820015892384. This part belongs to part family. An associate from Power Air Consulting will respond within 15 minutes to your query. It is our pleasure to help you with 542 20 64-56 part requirements.