3MM CS X 98MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 98 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:
H3X98
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Product Specification

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Part number H3X98 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 98 mm (3.858 in), a cross section of 3 mm (0.118 in), and an outside diameter of 104 mm (4.09 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against hydraulic fluids, propane and butane, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include general industrial maintenance, automotive, and construction equipment.

Stocked as H3X98 and sold individually. Unit weight is approximately 2.759 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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
H3X98
Description
3MM CS X 98MM ID BLACK BUNA 70D
Actual Outside Diameter
104 mm (4.09 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
98 mm (3.858 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity