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-902 BLACK BUNA 50D O-RING

Buna-N O-Ring, 0.239 in ID x 0.064 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
902
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
1/16 inch
Nominal Inside Diameter
1/8 inch
Nominal Outside Diameter
1/4 inch
Unit of Measure
EA
SKU:
H50902

Product Specification

-
The H50902 is an AS568-902 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 0.239 in (6.07 mm), a cross section of 0.064 in (1.63 mm), and an outside diameter of 0.367 in (9.32 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to water, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

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

H50902 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H50902
Description
-902 BLACK BUNA 50D O-RING
Actual Cross Section
0.064 inch (1.63 mm)
Actual Inside Diameter
0.239 inch (6.07 mm)
Actual Outside Diameter
0.367 inch (9.32 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity