2MM CS X 25.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 2 x 25.5 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:
H2X25.5
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Product Specification

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APG stocks the H2X25.5, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 25.5 mm (1.004 in), a cross section of 2 mm (0.079 in), and an outside diameter of 29.5 mm (1.16 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. Supplementary detail from the product record: Metric O-RING, JIS S26.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. This material stands up to greases and lubricants, propane and butane, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.

Maintenance and OEM teams specify it across fluid power, agricultural equipment, and construction equipment.

Order part number H2X25.5, sold individually. 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
H2X25.5
Description
2MM CS X 25.5MM ID BLACK BUNA 70D
Actual Outside Diameter
29.5 mm (1.16 inch)
Actual Cross Section
2 mm (0.079 inch)
Actual Inside Diameter
25.5 mm (1.004 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity