Q-317 BUNA 70 Q RING

Buna-N Quad-Ring, 0.912 in ID x 0.21 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
317
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
3/16 inch
Nominal Inside Diameter
15/16 inch
Nominal Outside Diameter
1 5/16 inch
Unit of Measure
EA
SKU:
QH70317
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Product Specification

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Part number QH70317 is an AS568-317 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 0.912 in (23.16 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.332 in (33.83 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Expect good resistance to propane and butane, greases and lubricants, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with strong acids or ozone and direct sunlight. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

It sees regular use in general industrial maintenance, automotive, and fluid power.

QH70317 ships individually. Unit weight is approximately 2.447 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
QH70317
Description
Q-317 BUNA 70 Q RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
0.912 inch (23.16 mm)
Actual Outside Diameter
1.332 inch (33.83 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6017
Product Category
O-Rings - Square/Quad - Commodity