1179181 | OR-06400-350-N70 (Pack of 25) --- General Purpose O-Rings - 64x3.5 mm - Black Nitrile Rubber Packs - Nitrile NBR, BUNA-N O-Ring 4.37x3.97x41.30 YS - ST4 91 Heli

YS - ST4 91 Heli - 61 - Replacement Bearing

BH00730508NFB

B050H03380300NFB

PC0950572Z

IDP050T18011080BFAC

1179181 | OR-06400-350-N70 (Pack of 25) --- General Purpose O-Rings - 64x3.5 mm - Black Nitrile Rubber Packs - Nitrile NBR, BUNA-N O-Ring 4.37x3.97x41.30 YS - ST4 91 Heli64x3. 5 mm Black General Purpose O Rings Nitrile (NBR, BUNA N) Sold Per 25: Base Category: O Rings General Purpose Top Level Category: O Rings General Purpose Nitrile Rubber Packs Product Details Inside Diameter (ID): 64. 00mm (64. 00mm is 2. 52 in.) Nitrile (NBR, BUNA N) Inside Diameter (ID): 64. 00mm (64. 00mm is 2. 52 in.) Section (t): 3. 50mm (3. 50mm is 0. 138 in.) Colour: Black Hardness: 70 Durometer Brand: MBA Country of Origin: US Product