3MM CS X 114.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 114.5 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:
H3X114.5
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Product Specification

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APG stocks the H3X114.5, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 114.5 mm (4.508 in), a cross section of 3 mm (0.118 in), and an outside diameter of 120.5 mm (4.74 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against propane and butane, water, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

Typical settings include construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.

This item is sold individually under part number H3X114.5. Unit weight is approximately 0.0032 g. 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
H3X114.5
Description
3MM CS X 114.5MM ID BLACK BUNA 70D
Actual Outside Diameter
120.5 mm (4.74 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
114.5 mm (4.508 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity