You have no items in your shopping cart.

-369 BLACK BUNA 50D O-RING

Buna-N O-Ring, 7.975 in ID x 0.21 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
369
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
3/16 inch
Nominal Inside Diameter
8 inch
Nominal Outside Diameter
8 3/8 inch
Unit of Measure
EA
SKU:
H50369

Product Specification

-
This o-ring is supplied in AS568-369 black Buna-N (Nitrile) 50 Shore A measuring an inside diameter of 7.975 in (202.57 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.395 in (213.23 mm), catalogued under part number H50369. It remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to propane and butane, greases and lubricants, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.

Typical settings include automotive, construction equipment, and agricultural equipment.

This item is sold individually under part number H50369. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H50369
Description
-369 BLACK BUNA 50D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
7.975 inch (202.57 mm)
Actual Outside Diameter
8.395 inch (213.23 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity