Q-011 BUNA 70 Q RING

Buna-N Quad-Ring, 0.301 in ID x 0.07 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
11
Durometer
70 Shore A
Cross Section Type
Quad
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
1/16 inch
Nominal Inside Diameter
5/16 inch
Nominal Outside Diameter
7/16 inch
Unit of Measure
EA
SKU:
QH70011
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Product Specification

-
Ordered as QH70011, this is an AS568-011 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 0.301 in (7.65 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.441 in (11.2 mm). The quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists propane and butane, water, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to automotive brake fluid or ozone and direct sunlight will shorten service life. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

Typical settings include general industrial maintenance, hydraulic and pneumatic systems, and agricultural equipment.

Stocked as QH70011 and sold individually. Unit weight is approximately 0.0926 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
QH70011
Description
Q-011 BUNA 70 Q RING
Actual Cross Section
0.07 inch (1.78 mm)
Actual Inside Diameter
0.301 inch (7.65 mm)
Actual Outside Diameter
0.441 inch (11.2 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6017
Product Category
O-Rings - Square/Quad - Commodity