3.55MM CS X 75MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.55 x 75 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:
H3.55X75
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Product Specification

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H3.55X75 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 75 mm (2.953 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 82.1 mm (3.23 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. It resists greases and lubricants, propane and butane, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or polar solvents.

Typical settings include fluid power, construction equipment, and general industrial maintenance.

This item is sold individually under part number H3.55X75. Unit weight is approximately 3.0025 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H3.55X75
Description
3.55MM CS X 75MM ID BLACK BUNA 70D
Actual Outside Diameter
82.1 mm (3.23 inch)
Actual Cross Section
3.55 mm (0.14 inch)
Actual Inside Diameter
75 mm (2.953 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity