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3MM CS X 350MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 350 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
22 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
null
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
null
Nominal Inside Diameter
null
Nominal Outside Diameter
null
Unit of Measure
EA
SKU:
H3X350
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Product Specification

-
Part number H3X350 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 350 mm (13.78 in), a cross section of 3 mm (0.118 in), and an outside diameter of 356 mm (14.02 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists hydraulic fluids, water, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Typical settings include agricultural equipment, construction equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H3X350. Unit weight is approximately 10.11 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H3X350
Description
3MM CS X 350MM ID BLACK BUNA 70D
Actual Outside Diameter
356 mm (14.02 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
350 mm (13.78 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity