4.5MM CS X 110MM ID BLACK BUNA 70D

Buna-N O-Ring, 4.5 x 110 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:
H4.5X110
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Product Specification

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APG stocks the H4.5X110, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 110 mm (4.331 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 119 mm (4.69 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists propane and butane, petroleum-based oils, and many alcohols. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

Typical settings include fluid power, agricultural equipment, and automotive.

Stocked as H4.5X110 and sold individually. Review your operating media and conditions against this specification before installation.
Item
H4.5X110
Description
4.5MM CS X 110MM ID BLACK BUNA 70D
Actual Outside Diameter
119 mm (4.69 inch)
Actual Cross Section
4.5 mm (0.177 inch)
Actual Inside Diameter
110 mm (4.331 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity