5.3MM CS X 160MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.3 x 160 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:
H5.3X160
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Product Specification

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APG stocks the H5.3X160, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 160 mm (6.299 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 170.6 mm (6.72 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, low compression set under sustained load. The material holds up against petroleum-based oils, propane and butane, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or strong acids.

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

This item is sold individually under part number H5.3X160. Unit weight is approximately 14.157 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H5.3X160
Description
5.3MM CS X 160MM ID BLACK BUNA 70D
Actual Outside Diameter
170.6 mm (6.72 inch)
Actual Cross Section
5.3 mm (0.209 inch)
Actual Inside Diameter
160 mm (6.299 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity