2.65MM CS X 25.8MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.65 x 25.8 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:
H2.65X25.8
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Product Specification

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Part number H2.65X25.8 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 25.8 mm (1.016 in), a cross section of 2.65 mm (0.104 in), and an outside diameter of 31.1 mm (1.22 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists many alcohols, water, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

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

Stocked as H2.65X25.8 and sold individually. Unit weight is approximately 0.6057 g. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H2.65X25.8
Description
2.65MM CS X 25.8MM ID BLACK BUNA 70D
Actual Outside Diameter
31.1 mm (1.22 inch)
Actual Cross Section
2.65 mm (0.104 inch)
Actual Inside Diameter
25.8 mm (1.016 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity