-475 BLACK BUNA 70D O-RING

Buna-N O-Ring, 25.94 in ID x 0.275 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
2 Nov 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
475
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
1/4 inch
Nominal Inside Diameter
26 inch
Nominal Outside Diameter
26 1/2 inch
Unit of Measure
EA
SKU:
H70475
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Product Specification

-
APG stocks the H70475, an AS568-475 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 25.94 in (658.88 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 26.49 in (672.85 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Expect good resistance to greases and lubricants, petroleum-based oils, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or ketones are present.

Typical settings include fluid power, automotive, and hydraulic and pneumatic systems.

Stocked as H70475 and sold individually. Unit weight is approximately 98.0394 g and nominal inside diameter is listed as 26 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H70475
Description
-475 BLACK BUNA 70D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
25.94 inch (658.88 mm)
Actual Outside Diameter
26.49 inch (672.85 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity