-349 BLACK CHLOROPRENE 70D O-RING

Neoprene O-Ring, 4.475 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
349
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
4 1/2 inch
Nominal Outside Diameter
4 7/8 inch
Unit of Measure
EA
SKU:
N70349
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Product Specification

-
Ordered as N70349, this is an AS568-349 black Neoprene (Chloroprene) 70 Shore A O-Ring built to an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to refrigerants and ammonia, ozone and weathering, and mild acids. Neoprene (Chloroprene) delivers a balanced combination of oil and weather resistance, strong performance in refrigeration circuits. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving aromatic hydrocarbons or chlorinated solvents call for a different compound.

Typical settings include general industrial, weather sealing and enclosures, and HVAC and refrigeration.

N70349 ships individually. Unit weight is approximately 11.616 g and nominal inside diameter is listed as 4 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
N70349
Description
-349 BLACK CHLOROPRENE 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
4.475 inch (113.67 mm)
Actual Outside Diameter
4.895 inch (124.33 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity