ASAP Fasteners provides you one click purchasing solutions for part B3403B of Twin Disc Incorporated Aerospace fasteners, aircraft bearing and mil-spec connector components. Please fill out below form with your desired quantity, your target price and the expected delivery dates for Twin Disc Incorporated part B3403B of This part is described as Seat Bearing. All fields are necessary which marked by *. Our knowledgeable staff assist you within 15 Minutes for part number B3403B quote.