4.5MM CS X 36MM ID BLACK BUNA 70D

Buna-N O-Ring, 4.5 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:
H4.5X36
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Product Specification

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H4.5X36 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 36 mm (1.417 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 45 mm (1.77 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The compound resists hydraulic fluids, water, and many alcohols. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. 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 ketones.

It sees regular use in general industrial maintenance, agricultural equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H4.5X36. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H4.5X36
Description
4.5MM CS X 36MM ID BLACK BUNA 70D
Actual Outside Diameter
45 mm (1.77 inch)
Actual Cross Section
4.5 mm (0.177 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