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Lip Seal, Square Profile, Buna-N O-Ring Loaded, Urethane, 1/4" Width, 1/4" Height, 5/8" ID, 1-1/8" OD (Pack of 1): Amazon.com: Industrial & Scientific
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AS568-332 SN70 (NBR) Buna-N 70 Duro Square O-Ring [SN70332] : The O-Ring Store LLC, We make getting O-Rings easy!
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