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-323 BLACK BUNA 50D O-RING

Buna-N O-Ring, 1.287 in ID x 0.21 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
323
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
1 5/16 inch
Nominal Outside Diameter
1 11/16 inch
Unit of Measure
EA
SKU:
H50323

Product Specification

-
The H50323 is an AS568-323 black Buna-N (Nitrile) 50 Shore A O-Ring measuring an inside diameter of 1.287 in (32.69 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.707 in (43.36 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists many alcohols, propane and butane, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to strong acids or ozone and direct sunlight will shorten service life.

Common environments for this compound include fluid power, automotive, and general industrial maintenance.

This item is sold individually under part number H50323. Nominal inside diameter is listed as 1 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H50323
Description
-323 BLACK BUNA 50D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
1.287 inch (32.69 mm)
Actual Outside Diameter
1.707 inch (43.36 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity