Request For Price Alternate Part NumberPart NameReplaced PNQuanityMaterial Condition S51000, S50000 Replace the O-Ring Seals in the Landing Gear Lower Strut with Green Tweed, Inc. Seal Kit Modification Part Factory New New Unused Surplus Overhauled Used Any Aircraft Models Twin Commander (690, 690A, 690B, 690C, 690D, 695, 695A, 695B, 680F(P), 680FL, 680FL(P), 680T, 680V, 680W, 681, 685, 560F) Company Name First Name * Last Name * Email * Phone Number * Notes Sales Order T&CPrivacy Policy Send Request Please note that by requesting pricing, you are accepting our Sales Order T&C and Privacy Policy. For more information, please follow the links under the policy menu below.