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-365 BLACK BUNA 50D O-RING

Buna-N O-Ring, 6.975 in ID x 0.21 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
22 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
365
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
7 inch
Nominal Outside Diameter
7 3/8 inch
Unit of Measure
EA
SKU:
H50365

Product Specification

-
This o-ring is supplied in AS568-365 black Buna-N (Nitrile) 50 Shore A supplied with an inside diameter of 6.975 in (177.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.395 in (187.83 mm), catalogued under part number H50365. It remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against many alcohols, greases and lubricants, and propane and butane. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where strong acids or ozone and direct sunlight are present.

Common environments for this compound include construction equipment, agricultural equipment, and fluid power.

This item is sold individually under part number H50365. Nominal inside diameter is listed as 7 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H50365
Description
-365 BLACK BUNA 50D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
6.975 inch (177.17 mm)
Actual Outside Diameter
7.395 inch (187.83 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity