4MM CS X 36MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 36 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:
H4X36
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Product Specification

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Ordered as H4X36, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 36 mm (1.417 in), a cross section of 4 mm (0.157 in), and an outside diameter of 44 mm (1.73 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to water, hydraulic fluids, and propane and butane. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or polar solvents call for a different compound.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and construction equipment.

This item is sold individually under part number H4X36. Unit weight is approximately 1.9342 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H4X36
Description
4MM CS X 36MM ID BLACK BUNA 70D
Actual Outside Diameter
44 mm (1.73 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
36 mm (1.417 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity