5.7MM CS X 149.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 149.6 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:
H5.7X149.6
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Product Specification

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H5.7X149.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 149.6 mm (5.89 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 161 mm (6.34 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies. The catalog record notes: Metric O-RING, JIS P150.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists greases and lubricants, propane and butane, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.

Common environments for this compound include construction equipment, general industrial maintenance, and automotive.

This item is sold individually under part number H5.7X149.6. Unit weight is approximately 15.146 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H5.7X149.6
Description
5.7MM CS X 149.6MM ID BLACK BUNA 70D
Actual Outside Diameter
161 mm (6.34 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
149.6 mm (5.89 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity