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70 Durometer Buna-N O-Ring, Inch OD, 1-1/2 Inch ID, 0.10 Inch Width

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Description & Features

This 70 Durometer Buna-N O-Ring is suitable for a variety of sealing applications. Constructed from 70 Durometer Buna-N, this O-ring provides reliable performance in temperatures ranging from -40°F to 240°F.

The O-ring has a nominal ID of 1-1/2 inches, an OD of 1-11/16 inches, and a width of 3/32 inches. Actual dimensions are 1.487 inch ID, 1.693 inch OD, and 0.103 inch width.

SKU: A-128

Supplier Part Number (MPN): 568-128

Alternate Part Numbers: C1CD84, MI-08740366, MINO-00407X90366

Specifications

Brand
HERCULES® SEALING PRODUCTS
Color
Black
Cross Section Shape
Round
Dash Size
128
Durometer
70A
Inside Diameter
1-1/2 in
Material
Buna-N
Series
568 Series
Suitable For Use With
Hydraulic Cylinders
System of Measurement
Imperial

Product Questions & Answers (2)

Question by: Connie P on Sep 6, 2025, 3:34 PM
Hey, will this O-ring hold up alright in my hydraulic system? It gets pretty hot sometimes.
Answer by: Customer Support on Sep 7, 2025, 5:56 PM
Rated for temperatures between -40°F and 240°F, this Buna-N O-ring should provide a reliable seal in many hydraulic applications.
Question by: Lyle S on Jun 21, 2025, 1:40 PM
got a groove that calls for a -128 o-ring. is this the right dash size and how many come in the pack
Answer by: Customer Support on Jun 22, 2025, 7:10 PM
Match-up wise, this one is dash size -128, and it ships as a 20 count package.

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