-355 BLACK BUNA 90D O-RING

Buna-N O-Ring, 5.225 in ID x 0.21 CS, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
355
Durometer
90 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 1/4 inch
Nominal Outside Diameter
5 5/8 inch
Unit of Measure
EA
SKU:
H90355
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Product Specification

-
APG stocks the H90355, an AS568-355 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 5.225 in (132.72 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.645 in (143.38 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) offers reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against water, many alcohols, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones.

It sees regular use in agricultural equipment, hydraulic and pneumatic systems, and fluid power.

H90355 ships individually. Unit weight is approximately 13.479 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H90355
Description
-355 BLACK BUNA 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
5.225 inch (132.72 mm)
Actual Outside Diameter
5.645 inch (143.38 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity