-339 BLACK CHLOROPRENE 70D O-RING

Neoprene O-Ring, 3.225 in ID x 0.21 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Neoprene (Chloropene)
Dash Size
339
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
3/16 inch
Nominal Inside Diameter
3 1/4 inch
Nominal Outside Diameter
3 5/8 inch
Unit of Measure
EA
SKU:
N70339
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Product Specification

-
APG stocks the N70339, an AS568-339 black Neoprene (Chloroprene) 70 Shore A O-Ring supplied with an inside diameter of 3.225 in (81.92 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.645 in (92.58 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Neoprene (Chloroprene) is widely chosen for a balanced combination of oil and weather resistance, inherent flame-retarding characteristics. Expect good resistance to mild acids, ozone and weathering, and sunlight and salt spray. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ketones or chlorinated solvents call for a different compound.

It sees regular use in transit and rail, marine equipment, and general industrial.

Stocked as N70339 and sold individually. Unit weight is approximately 8.5713 g and nominal inside diameter is listed as 3 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to 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
N70339
Description
-339 BLACK CHLOROPRENE 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
3.225 inch (81.92 mm)
Actual Outside Diameter
3.645 inch (92.58 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity