3MM CS X 41MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 41 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:
H3X41
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Product Specification

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The H3X41 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 41 mm (1.614 in), a cross section of 3 mm (0.118 in), and an outside diameter of 47 mm (1.85 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to many alcohols, greases and lubricants, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.

It sees regular use in fluid power, construction equipment, and automotive.

Order part number H3X41, sold individually. Unit weight is approximately 1.21 g. Review your operating media and conditions against this specification before installation.
Item
H3X41
Description
3MM CS X 41MM ID BLACK BUNA 70D
Actual Outside Diameter
47 mm (1.85 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
41 mm (1.614 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity