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-417 BLACK BUNA 50D O-RING

Buna-N O-Ring, 3.475 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
417
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 1/2 inch
Nominal Outside Diameter
4 inch
Unit of Measure
EA
SKU:
H50417

Product Specification

-
This o-ring is supplied in AS568-417 black Buna-N (Nitrile) 50 Shore A built to an inside diameter of 3.475 in (88.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.025 in (102.24 mm), catalogued under part number H50417. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to greases and lubricants, water, and hydraulic fluids. Buna-N (Nitrile) offers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or polar solvents are present.

It sees regular use in construction equipment, agricultural equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H50417. Nominal inside diameter is listed as 3 1/2 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H50417
Description
-417 BLACK BUNA 50D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
3.475 inch (88.27 mm)
Actual Outside Diameter
4.025 inch (102.24 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity