-272 BLACK BUNA 70D O-RING

Buna-N O-Ring, 9.484 in ID x 0.139 CS, 70A, Black, Metal Det., -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
272
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
1/8 inch
Nominal Inside Diameter
9 1/2 inch
Nominal Outside Diameter
9 3/4 inch
Unit of Measure
EA
SKU:
H70MD272
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Product Specification

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Part number H70MD272 is an AS568-272 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 9.484 in (240.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.762 in (247.95 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material holds up against greases and lubricants, propane and butane, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

This o-ring is metal detectable for HACCP and foreign-body control programs. It sees regular use in hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Stocked as H70MD272 and sold individually. Nominal inside diameter is listed as 9 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H70MD272
Description
-272 BLACK BUNA 70D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
9.484 inch (240.89 mm)
Actual Outside Diameter
9.762 inch (247.95 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable