3.5MM CS X 65MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 65 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:
H3.5X65
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Product Specification

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The H3.5X65 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 65 mm (2.559 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 72 mm (2.83 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. This material stands up to many alcohols, propane and butane, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ketones or strong acids are present.

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

H3.5X65 ships individually. Unit weight is approximately 2.5286 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H3.5X65
Description
3.5MM CS X 65MM ID BLACK BUNA 70D
Actual Outside Diameter
72 mm (2.83 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
65 mm (2.559 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity