5.7MM CS X 94.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 94.3 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:
H5.7X94.3
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 94.3 mm (3.713 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 105.7 mm (4.16 in), catalogued under part number H5.7X94.3. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. Expect good resistance to hydraulic fluids, petroleum-based oils, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or automotive brake fluid call for a different compound.

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

This item is sold individually under part number H5.7X94.3. Unit weight is approximately 9.8276 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H5.7X94.3
Description
5.7MM CS X 94.3MM ID BLACK BUNA 70D
Actual Outside Diameter
105.7 mm (4.16 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
94.3 mm (3.713 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity