-228 BLACK BUNA 50D O-RING

Buna-N O-Ring, 2.234 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
228
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 1/4 inch
Nominal Outside Diameter
2 1/2 inch
Unit of Measure
EA
SKU:
H50228
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Product Specification

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H50228 is an AS568-228 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 2.234 in (56.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.512 in (63.8 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. Expect good resistance to greases and lubricants, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or strong acids are present.

It sees regular use in fluid power, construction equipment, and automotive.

This item is sold individually under part number H50228. Unit weight is approximately 0.0025 g. Review your operating media and conditions against this specification before installation.
Item
H50228
Description
-228 BLACK BUNA 50D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
2.234 inch (56.74 mm)
Actual Outside Diameter
2.512 inch (63.8 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity