Q-461 BUNA 70 Q RING

Buna-N Quad-Ring, 15.955 in ID x 0.275 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
461
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
1/4 inch
Nominal Inside Diameter
16 inch
Nominal Outside Diameter
16 1/2 inch
Unit of Measure
EA
SKU:
QH70461
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Product Specification

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Part number QH70461 is an AS568-461 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 15.955 in (405.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 16.505 in (419.23 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists petroleum-based oils, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

It sees regular use in general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.

QH70461 ships individually. Unit weight is approximately 60.323 g and nominal inside diameter is listed as 16 inch. Review your operating media and conditions against this specification before installation. 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
QH70461
Description
Q-461 BUNA 70 Q RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
15.955 inch (405.26 mm)
Actual Outside Diameter
16.505 inch (419.23 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6017
Product Category
O-Rings - Square/Quad - Commodity