2.4MM CS X 27.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 27.3 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:
H2.4X27.3
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Product Specification

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H2.4X27.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 27.3 mm (1.075 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 32.1 mm (1.26 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against water, petroleum-based oils, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or strong acids will shorten service life.

Typical settings include hydraulic and pneumatic systems, automotive, and construction equipment.

Order part number H2.4X27.3, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H2.4X27.3
Description
2.4MM CS X 27.3MM ID BLACK BUNA 70D
Actual Outside Diameter
32.1 mm (1.26 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
27.3 mm (1.075 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity