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6MM CS X 320MM ID BLACK BUNA 70D

Buna-N O-Ring, 6 x 320 mm, 70A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
22 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:
H6X320

Product Specification

-
Ordered as H6X320, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 320 mm (12.598 in), a cross section of 6 mm (0.236 in), and an outside diameter of 332 mm (13.07 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against greases and lubricants, hydraulic fluids, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or strong acids.

Common environments for this compound include construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.

H6X320 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H6X320
Description
6MM CS X 320MM ID BLACK BUNA 70D
Actual Outside Diameter
332 mm (13.07 inch)
Actual Cross Section
6 mm (0.236 inch)
Actual Inside Diameter
320 mm (12.598 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity