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-470 BLACK BUNA 70D O-RING

Buna-N O-Ring, 20.955 in ID x 0.275 CS, 70A, Black, Metal Det., -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
470
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
21 inch
Nominal Outside Diameter
21 1/2 inch
Unit of Measure
EA
SKU:
H70MD470

Product Specification

-
APG stocks the H70MD470, an AS568-470 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists many alcohols, propane and butane, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in automotive brake fluid or ozone and direct sunlight.

This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

Stocked as H70MD470 and sold individually. Nominal inside diameter is listed as 21 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H70MD470
Description
-470 BLACK BUNA 70D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
20.955 inch (532.26 mm)
Actual Outside Diameter
21.505 inch (546.23 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable