5MM CS X 320MM ID BLACK BUNA 70D

Buna-N O-Ring, 5 x 320 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:
H5X320
Please login to see price and add to cart

Product Specification

-
Part number H5X320 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 320 mm (12.598 in), a cross section of 5 mm (0.197 in), and an outside diameter of 330 mm (12.99 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists hydraulic fluids, water, and propane and butane. Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or automotive brake fluid.

It sees regular use in hydraulic and pneumatic systems, fluid power, and automotive.

Stocked as H5X320 and sold individually. Unit weight is approximately 24.491 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H5X320
Description
5MM CS X 320MM ID BLACK BUNA 70D
Actual Outside Diameter
330 mm (12.99 inch)
Actual Cross Section
5 mm (0.197 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