5.7MM CS X 61.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 61.6 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:
H5.7X61.6
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Product Specification

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APG stocks the H5.7X61.6, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 61.6 mm (2.425 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 73 mm (2.87 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. This item is further identified as Metric O-RING, JIS P62.

The compound resists petroleum-based oils, propane and butane, and many alcohols. Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. 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 ketones.

Typical settings include hydraulic and pneumatic systems, general industrial maintenance, and fluid power.

Reference part number H5.7X61.6 when ordering; the item is sold individually. Unit weight is approximately 6.4935 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H5.7X61.6
Description
5.7MM CS X 61.6MM ID BLACK BUNA 70D
Actual Outside Diameter
73 mm (2.87 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
61.6 mm (2.425 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity