3.55MM CS X 200MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.55 x 200 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 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:
H3.55X200
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Product Specification

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The H3.55X200 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 200 mm (7.874 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 207.1 mm (8.15 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to many alcohols, hydraulic fluids, and propane and butane. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or strong acids.

You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and fluid power.

This item is sold individually under part number H3.55X200. Unit weight is approximately 7.7542 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H3.55X200
Description
3.55MM CS X 200MM ID BLACK BUNA 70D
Actual Outside Diameter
207.1 mm (8.15 inch)
Actual Cross Section
3.55 mm (0.14 inch)
Actual Inside Diameter
200 mm (7.874 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity