1159613 | ORB-03900-350-N70 (Pack of 3150) --- General Purpose O-Rings - 39x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring 11.11x25.40x19.05 Gates® 320XL037

Gates® 320XL037

S683BZZSMC3

12mm is 42

ISO CLASS 8 / Steel

1159613 | ORB-03900-350-N70 (Pack of 3150) --- General Purpose O-Rings - 39x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring 11.11x25.40x19.05 Gates® 320XL03739x3. 5 mm Black General Purpose O Rings Nitrile (NBR, BUNA N) Sold Per 3150: Base Category: O Rings General Purpose Top Level Category: O Rings General Purpose Nitrile Rubber Bulk Product Details Inside Diameter (ID): 39. 00mm (39. 00mm is 1. 535 in.) Nitrile (NBR, BUNA N) Inside Diameter (ID): 39. 00mm (39. 00mm is 1. 535 in.) Section (t): 3. 50mm (3. 50mm is 0. 138 in.) Colour: Black Hardness: 70 Durometer Brand: MBA Country of Origin: TW Product