2MM CS X 188MM ID BLACK BUNA 70D

Buna-N O-Ring, 2 x 188 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:
H2X188
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Product Specification

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The H2X188 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 188 mm (7.402 in), a cross section of 2 mm (0.079 in), and an outside diameter of 192 mm (7.56 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. It resists hydraulic fluids, water, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

You will find this material specified across construction equipment, automotive, and agricultural equipment.

This item is sold individually under part number H2X188. Unit weight is approximately 2.3246 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H2X188
Description
2MM CS X 188MM ID BLACK BUNA 70D
Actual Outside Diameter
192 mm (7.56 inch)
Actual Cross Section
2 mm (0.079 inch)
Actual Inside Diameter
188 mm (7.402 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity