3.5MM CS X 53MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 53 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:
H3.5X53
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Product Specification

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APG stocks the H3.5X53, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 53 mm (2.087 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 60 mm (2.36 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to water, petroleum-based oils, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across fluid power, general industrial maintenance, and automotive.

Stocked as H3.5X53 and sold individually. Unit weight is approximately 2.085 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H3.5X53
Description
3.5MM CS X 53MM ID BLACK BUNA 70D
Actual Outside Diameter
60 mm (2.36 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
53 mm (2.087 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity