5MM CS X 290MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 290 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H5X290
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Product Specification

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APG stocks the H5X290, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 290 mm (11.417 in), a cross section of 5 mm (0.197 in), and an outside diameter of 300 mm (11.81 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for low compression set under sustained load and most widely specified general-purpose sealing elastomer. It resists greases and lubricants, water, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or polar solvents.

You will find this material specified across agricultural equipment, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number H5X290. Unit weight is approximately 22.069 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H5X290
Description
5MM CS X 290MM ID BLACK BUNA 70D
Actual Outside Diameter
300 mm (11.81 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
290 mm (11.417 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity