2.4MM CS X 51.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 51.6 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:
H2.4X51.6
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Product Specification

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H2.4X51.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 51.6 mm (2.031 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 56.4 mm (2.22 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against greases and lubricants, hydraulic fluids, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or strong acids will shorten service life.

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

Reference part number H2.4X51.6 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H2.4X51.6
Description
2.4MM CS X 51.6MM ID BLACK BUNA 70D
Actual Outside Diameter
56.4 mm (2.22 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
51.6 mm (2.031 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity