5MM CS X 20MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 20 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:
H5X20
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Product Specification

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Part number H5X20 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 20 mm (0.787 in), a cross section of 5 mm (0.197 in), and an outside diameter of 30 mm (1.18 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. This material stands up to many alcohols, petroleum-based oils, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones.

You will find this material specified across automotive, agricultural equipment, and general industrial maintenance.

Reference part number H5X20 when ordering; the item is sold individually. Unit weight is approximately 1.9035 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H5X20
Description
5MM CS X 20MM ID BLACK BUNA 70D
Actual Outside Diameter
30 mm (1.18 inch)
Actual Cross Section
5 mm (0.197 inch)
Actual Inside Diameter
20 mm (0.787 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity