7MM CS X 108MM ID BLACK BUNA 70D

Buna-N O-Ring, 7 x 108 mm, 70A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
29 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:
H7X108

Product Specification

-
Part number H7X108 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 108 mm (4.252 in), a cross section of 7 mm (0.276 in), and an outside diameter of 122 mm (4.8 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to greases and lubricants, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or strong acids.

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

H7X108 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H7X108
Description
7MM CS X 108MM ID BLACK BUNA 70D
Actual Outside Diameter
122 mm (4.8 inch)
Actual Cross Section
7 mm (0.276 inch)
Actual Inside Diameter
108 mm (4.252 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity