5.3MM CS X 236MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.3 x 236 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:
H5.3X236
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Product Specification

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H5.3X236 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 236 mm (9.291 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 246.6 mm (9.71 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. The compound resists hydraulic fluids, greases and lubricants, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.

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

Stocked as H5.3X236 and sold individually. Unit weight is approximately 20.89 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H5.3X236
Description
5.3MM CS X 236MM ID BLACK BUNA 70D
Actual Outside Diameter
246.6 mm (9.71 inch)
Actual Cross Section
5.3 mm (0.209 inch)
Actual Inside Diameter
236 mm (9.291 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity