1133412 | ORB-02100-450-N70 (Pack of 4250) --- General Purpose O-Rings - 21x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring 34.00x20.60x16.00 M12 60x24 mm Thumb Knobs

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1133412 | ORB-02100-450-N70 (Pack of 4250) --- General Purpose O-Rings - 21x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring 34.00x20.60x16.00 M12 60x24 mm Thumb Knobs21x4. 5 mm Black General Purpose O Rings Nitrile (NBR, BUNA N) Sold Per 4250: Base Category: O Rings General Purpose Top Level Category: O Rings General Purpose Nitrile Rubber Bulk Product Details Inside Diameter (ID): 21. 00mm (21. 00mm is 0. 827 in.) Nitrile (NBR, BUNA N) Inside Diameter (ID): 21. 00mm (21. 00mm is 0. 827 in.) Section (t): 4. 50mm (4. 50mm is 0. 177 in.) Colour: Black Hardness: 70 Durometer Brand: MBA Country of Origin: TW Product