You can send a request for quote for p/n 431-2 to Power Air Consulting using powerairconsulting.com. This part is manufactured by C S Osborne And Company. The description of it is Nut Plain Castellated Hexagon. The national stock number associated with this part is 5310000109879. 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 431-2 part requirements.