3MM CS X 182MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 182 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:
H3X182
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Product Specification

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Part number H3X182 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 182 mm (7.165 in), a cross section of 3 mm (0.118 in), and an outside diameter of 188 mm (7.4 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to petroleum-based oils, propane and butane, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

It sees regular use in agricultural equipment, fluid power, and general industrial maintenance.

Stocked as H3X182 and sold individually. Unit weight is approximately 4.9958 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H3X182
Description
3MM CS X 182MM ID BLACK BUNA 70D
Actual Outside Diameter
188 mm (7.4 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
182 mm (7.165 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity