7MM CS X 206MM ID BLACK BUNA 70D

Buna-N O-Ring, 7 x 206 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 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:
H7X206
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Product Specification

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The H7X206 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 206 mm (8.11 in), a cross section of 7 mm (0.276 in), and an outside diameter of 220 mm (8.66 in). This 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 reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. It resists water, hydraulic fluids, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Order part number H7X206, sold individually. Unit weight is approximately 31.932 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H7X206
Description
7MM CS X 206MM ID BLACK BUNA 70D
Actual Outside Diameter
220 mm (8.66 inch)
Actual Cross Section
7 mm (0.276 inch)
Actual Inside Diameter
206 mm (8.11 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity