5.3MM CS X 335MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.3 x 335 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:
H5.3X335
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Product Specification

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APG stocks the H5.3X335, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 335 mm (13.189 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 345.6 mm (13.61 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. It resists water, hydraulic fluids, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or polar solvents.

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

H5.3X335 ships individually. Unit weight is approximately 29.823 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H5.3X335
Description
5.3MM CS X 335MM ID BLACK BUNA 70D
Actual Outside Diameter
345.6 mm (13.61 inch)
Actual Cross Section
5.3 mm (0.209 inch)
Actual Inside Diameter
335 mm (13.189 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity