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-469 BLACK BUNA 50D O-RING

Buna-N O-Ring, 19.955 in ID x 0.275 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
22 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
469
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
1/4 inch
Nominal Inside Diameter
20 inch
Nominal Outside Diameter
20 1/2 inch
Unit of Measure
EA
SKU:
H50469

Product Specification

-
The H50469 is an AS568-469 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 19.955 in (506.86 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 20.505 in (520.83 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. The compound resists water, greases and lubricants, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across agricultural equipment, automotive, and fluid power.

H50469 ships individually. Nominal inside diameter is listed as 20 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H50469
Description
-469 BLACK BUNA 50D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
19.955 inch (506.86 mm)
Actual Outside Diameter
20.505 inch (520.83 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity