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-415 BLACK BUNA 50D O-RING

Buna-N O-Ring, 3.225 in ID x 0.275 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
415
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
3 1/4 inch
Nominal Outside Diameter
3 3/4 inch
Unit of Measure
EA
SKU:
H50415

Product Specification

-
H50415 is an AS568-415 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 3.225 in (81.92 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.775 in (95.89 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

It resists petroleum-based oils, greases and lubricants, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Typical settings include hydraulic and pneumatic systems, general industrial maintenance, and automotive.

This item is sold individually under part number H50415. Nominal inside diameter is listed as 3 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H50415
Description
-415 BLACK BUNA 50D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
3.225 inch (81.92 mm)
Actual Outside Diameter
3.775 inch (95.89 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity