3.5MM CS X 85MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 85 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:
H3.5X85
Please login to see price and add to cart

Product Specification

-
H3.5X85 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 85 mm (3.346 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 92 mm (3.62 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material holds up against propane and butane, petroleum-based oils, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include agricultural equipment, fluid power, and automotive.

Reference part number H3.5X85 when ordering; the item is sold individually. Unit weight is approximately 3.281 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H3.5X85
Description
3.5MM CS X 85MM ID BLACK BUNA 70D
Actual Outside Diameter
92 mm (3.62 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
85 mm (3.346 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity