3.5MM CS X 33MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 33 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:
H3.5X33
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Product Specification

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Part number H3.5X33 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 33 mm (1.299 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 40 mm (1.57 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. It resists hydraulic fluids, water, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ozone and direct sunlight are present.

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

This item is sold individually under part number H3.5X33. Unit weight is approximately 1.37 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H3.5X33
Description
3.5MM CS X 33MM ID BLACK BUNA 70D
Actual Outside Diameter
40 mm (1.57 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
33 mm (1.299 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity