3MM CS X 48MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 48 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:
H3X48
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Product Specification

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Ordered as H3X48, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 48 mm (1.89 in), a cross section of 3 mm (0.118 in), and an outside diameter of 54 mm (2.13 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for low compression set under sustained load and most widely specified general-purpose sealing elastomer. The material holds up against water, many alcohols, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.

You will find this material specified across fluid power, automotive, and agricultural equipment.

Order part number H3X48, sold individually. Unit weight is approximately 1.338 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H3X48
Description
3MM CS X 48MM ID BLACK BUNA 70D
Actual Outside Diameter
54 mm (2.13 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
48 mm (1.89 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity