3MM CS X 52.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 52.5 mm, 70A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
29 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:
H3X52.5

Product Specification

-
The H3X52.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 52.5 mm (2.067 in), a cross section of 3 mm (0.118 in), and an outside diameter of 58.5 mm (2.3 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. It resists many alcohols, water, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

Order part number H3X52.5, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. 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
H3X52.5
Description
3MM CS X 52.5MM ID BLACK BUNA 70D
Actual Outside Diameter
58.5 mm (2.3 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
52.5 mm (2.067 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity