1.5MM CS X 31MM ID BLACK BUNA 70D

Buna-N O-Ring, 1.5 x 31 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 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:
H1.5X31
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Product Specification

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The H1.5X31 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 31 mm (1.22 in), a cross section of 1.5 mm (0.059 in), and an outside diameter of 34 mm (1.34 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists hydraulic fluids, greases and lubricants, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.

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

Reference part number H1.5X31 when ordering; the item is sold individually. Unit weight is approximately 0.2134 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H1.5X31
Description
1.5MM CS X 31MM ID BLACK BUNA 70D
Actual Outside Diameter
34 mm (1.34 inch)
Actual Cross Section
1.5 mm (0.059 inch)
Actual Inside Diameter
31 mm (1.22 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity