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Buna 70-356-Black-Pk5

AS568-356 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 5.35 in (135.89 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.77 in (146.56 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Picture of Buna 70-356-Black-Pk5
Available Stock
57
Status
Available
Material
Buna-N (Nitrile / NBR)
Dash Size
356
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
5 3/8 inch
Nominal Outside Diameter
5 3/8 inch
Unit of Measure
BG
SKU:
SB-H70356-5
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Product Specification

-
APG stocks the SB-H70356-5, an AS568-356 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 5.35 in (135.89 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.77 in (146.56 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: 0.210CSX5.350"IDX5.770"OD.

Expect good resistance to greases and lubricants, water, and hydraulic fluids. Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

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

Reference part number SB-H70356-5 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 5 3/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Item
SB-H70356-5
Description
Buna 70-356-Black-Pk5
Size
0.210"CSX5.350"IDX5.770"OD
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
5.35 inch (135.89 mm)
Actual Outside Diameter
5.77 inch (146.56 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6003
Product Category
O-Rings - Bagged - Commodity

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