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Amazon.com: DINGGUANGHE CS2.4mm NBR Rubber O Ring OD 40/41/42/43/44/45/46/47/48/49x2.4mm ORing Nitrile Gasket Seal Thickness 2.4mm O-Ring 50pcs Gasket, Rings (Size : OD43x2.4mm) : Industrial & Scientific
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R-31 O-Ring (ID: 47 mm, CS: 3.5 mm, OD: 54 mm) (10 to 120 O-Rings) by X1 Tools: Amazon.com: Industrial & Scientific
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