3.1MM CS X 59.4MM ID BLACK BUNA 90D

Buna-N O-Ring, 3.1 x 59.4 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:
H90M3.1X59.4
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Product Specification

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Part number H90M3.1X59.4 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 59.4 mm (2.339 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 65.6 mm (2.58 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. This item is further identified as Metric O-RING, JIS G60.

This material stands up to petroleum-based oils, many alcohols, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ozone and direct sunlight or strong acids are present.

Typical settings include agricultural equipment, fluid power, and construction equipment.

H90M3.1X59.4 ships individually. Unit weight is approximately 2.0838 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H90M3.1X59.4
Description
3.1MM CS X 59.4MM ID BLACK BUNA 90D
Actual Outside Diameter
65.6 mm (2.58 inch)
Actual Cross Section
3.1 mm (0.122 inch)
Actual Inside Diameter
59.4 mm (2.339 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity