5.7MM CS X 54.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 54.6 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:
H5.7X54.6
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Product Specification

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The H5.7X54.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 54.6 mm (2.15 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 66 mm (2.6 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. Supplementary detail from the product record: Metric O-RING, JIS P55.

Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material holds up against petroleum-based oils, water, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Common environments for this compound include hydraulic and pneumatic systems, agricultural equipment, and fluid power.

Order part number H5.7X54.6, sold individually. Unit weight is approximately 5.9263 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H5.7X54.6
Description
5.7MM CS X 54.6MM ID BLACK BUNA 70D
Actual Outside Diameter
66 mm (2.6 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
54.6 mm (2.15 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity