8MM CS X 280MM ID BLACK BUNA 70D

Buna-N O-Ring, 8 x 280 mm, 70A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
30 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:
H8X280

Product Specification

-
The H8X280 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 280 mm (11.024 in), a cross section of 8 mm (0.315 in), and an outside diameter of 296 mm (11.65 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to many alcohols, water, and propane and butane. Buna-N (Nitrile) is specified for strong abrasion and tear resistance, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

You will find this material specified across hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

This item is sold individually under part number H8X280. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H8X280
Description
8MM CS X 280MM ID BLACK BUNA 70D
Actual Outside Diameter
296 mm (11.65 inch)
Actual Cross Section
8 mm (0.315 inch)
Actual Inside Diameter
280 mm (11.024 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity