-227 BLACK BUNA 50D O-RING

Buna-N O-Ring, 2.109 in ID x 0.139 CS, 50A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
227
Durometer
50 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
1/8 inch
Nominal Inside Diameter
2 1/8 inch
Nominal Outside Diameter
2 3/8 inch
Unit of Measure
EA
SKU:
H50227
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Product Specification

-
H50227 is an AS568-227 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 2.109 in (53.57 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.387 in (60.63 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The compound resists hydraulic fluids, petroleum-based oils, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or automotive brake fluid call for a different compound.

Maintenance and OEM teams specify it across automotive, construction equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H50227. Unit weight is approximately 0.0024 g and nominal inside diameter is listed as 2 1/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H50227
Description
-227 BLACK BUNA 50D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
2.109 inch (53.57 mm)
Actual Outside Diameter
2.387 inch (60.63 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity