2.5MM CS X 37MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 37 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:
H2.5X37
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Product Specification

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Ordered as H2.5X37, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 37 mm (1.457 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 42 mm (1.65 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to hydraulic fluids, propane and butane, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents.

Common environments for this compound include agricultural equipment, general industrial maintenance, and automotive.

H2.5X37 ships individually. Unit weight is approximately 0.7457 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H2.5X37
Description
2.5MM CS X 37MM ID BLACK BUNA 70D
Actual Outside Diameter
42 mm (1.65 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
37 mm (1.457 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity