2.65MM CS X 31.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.65 x 31.5 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:
H2.65X31.5
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Product Specification

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Ordered as H2.65X31.5, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 31.5 mm (1.24 in), a cross section of 2.65 mm (0.104 in), and an outside diameter of 36.8 mm (1.45 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to water, petroleum-based oils, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or polar solvents.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and construction equipment.

Reference part number H2.65X31.5 when ordering; the item is sold individually. Unit weight is approximately 0.693 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H2.65X31.5
Description
2.65MM CS X 31.5MM ID BLACK BUNA 70D
Actual Outside Diameter
36.8 mm (1.45 inch)
Actual Cross Section
2.65 mm (0.104 inch)
Actual Inside Diameter
31.5 mm (1.24 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity