2MM CS X 45MM ID BLACK BUNA 70D

Buna-N O-Ring, 2 x 45 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:
H2X45
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Product Specification

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H2X45 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 45 mm (1.772 in), a cross section of 2 mm (0.079 in), and an outside diameter of 49 mm (1.93 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. Expect good resistance to many alcohols, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

Common environments for this compound include automotive, hydraulic and pneumatic systems, and construction equipment.

This item is sold individually under part number H2X45. Unit weight is approximately 0.573 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
H2X45
Description
2MM CS X 45MM ID BLACK BUNA 70D
Actual Outside Diameter
49 mm (1.93 inch)
Actual Cross Section
2 mm (0.079 inch)
Actual Inside Diameter
45 mm (1.772 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity