2MM CS X 57MM ID BLACK BUNA 70D

Buna-N O-Ring, 2 x 57 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H2X57
Please login to see price and add to cart

Product Specification

-
This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 57 mm (2.244 in), a cross section of 2 mm (0.079 in), and an outside diameter of 61 mm (2.4 in), catalogued under part number H2X57. It remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to hydraulic fluids, propane and butane, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and agricultural equipment.

Stocked as H2X57 and sold individually. Unit weight is approximately 0.73 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H2X57
Description
2MM CS X 57MM ID BLACK BUNA 70D
Actual Outside Diameter
61 mm (2.4 inch)
Actual Cross Section
2 mm (0.079 inch)
Actual Inside Diameter
57 mm (2.244 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity