2.4MM CS X 20.3MM ID BLACK BUNA 90D

Buna-N O-Ring, 2.4 x 20.3 mm, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
90 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:
H90M2.4X20.3
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Product Specification

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H90M2.4X20.3 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 20.3 mm (0.799 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 25.1 mm (0.99 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to greases and lubricants, propane and butane, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to polar solvents or ozone and direct sunlight will shorten service life.

Typical settings include hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Order part number H90M2.4X20.3, sold individually. 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
H90M2.4X20.3
Description
2.4MM CS X 20.3MM ID BLACK BUNA 90D
Actual Outside Diameter
25.1 mm (0.99 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
20.3 mm (0.799 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity