3.5MM CS X 88MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 88 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:
H3.5X88
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Product Specification

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The H3.5X88 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 88 mm (3.465 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 95 mm (3.74 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

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 propane and butane, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in general industrial maintenance, agricultural equipment, and automotive.

Order part number H3.5X88, sold individually. Unit weight is approximately 3.43 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H3.5X88
Description
3.5MM CS X 88MM ID BLACK BUNA 70D
Actual Outside Diameter
95 mm (3.74 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
88 mm (3.465 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity