5MM CS X 9MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 9 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:
H5X9
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Product Specification

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Ordered as H5X9, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 9 mm (0.354 in), a cross section of 5 mm (0.197 in), and an outside diameter of 19 mm (0.75 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists petroleum-based oils, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Common environments for this compound include construction equipment, agricultural equipment, and hydraulic and pneumatic systems.

Reference part number H5X9 when ordering; the item is sold individually. Unit weight is approximately 1.072 g. 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
H5X9
Description
5MM CS X 9MM ID BLACK BUNA 70D
Actual Outside Diameter
19 mm (0.75 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
9 mm (0.354 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity