World Wide Metric, Inc.
37 Readington Road
Branchburg, New Jersey 08876
Phone: 732-247-2300 • Fax: 732-247-7258
E-Mail: sales@worldwidemetric.com • Web site: www.worldwidemetric.com
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Other wall thicknesses are available from stock.
Concentric reducers with a permeability πr <1.08 are available on request.
a2319-500
Unit of Measure
1 2 3 4 5 

Item #

RA 1 - Nominal Size

RA 2 - Nominal Size

RA 1 - OD

RA 2 - OD

S1

S2

YCN-RED-057x1.5X025x1.5 N/A 2 in N/A 3/4 in N/A 57.0 mm N/A 25 mm N/A 1.5 mm N/A 1.5 mm
YCN-RED-057x3.0X025x1.5 N/A 2 in N/A 3/4 in N/A 57.0 mm N/A 25 mm N/A 3.0 mm N/A 1.5 mm
YCN-RED-057x1.5X030x1.5 N/A 2 in N/A 1 in N/A 57.0 mm N/A 30 mm N/A 1.5 mm N/A 1.5 mm
YCN-RED-057x3.0X030x2.0 N/A 2 in N/A 1 in N/A 57.0 mm N/A 30 mm N/A 3.0 mm N/A 2.0 mm
YCN-RED-057x1.5X038x1.5 N/A 2 in N/A 1 1/4 in N/A 57.0 mm N/A 38 mm N/A 1.5 mm N/A 1.5 mm
YCN-RED-057x3.0X038x2.0 N/A 2 in N/A 1 1/4 in N/A 57.0 mm N/A 38 mm N/A 3.0 mm N/A 2.0 mm
YCN-RED-057x1.5X044x1.5 N/A 2 in N/A 1 1/2 in N/A 57.0 mm N/A 44.5 mm N/A 1.5 mm N/A 1.5 mm
YCN-RED-057x3.0X044x2.5 N/A 2 in N/A 1 1/2 in N/A 57.0 mm N/A 44.5 mm N/A 3.0 mm N/A 2.5 mm
YCN-RED-076x2.0X030x1.5 N/A 2 1/2 in N/A 1 in N/A 76.0 mm N/A 30 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-076x3.5X030x2.0 N/A 2 1/2 in N/A 1 in N/A 76.0 mm N/A 30 mm N/A 3.5 mm N/A 2.0 mm
YCN-RED-076x2.0X038x1.5 N/A 2 1/2 in N/A 1 1/4 in N/A 76.0 mm N/A 38 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-076x3.5X038x2.0 N/A 2 1/2 in N/A 1 1/4 in N/A 76.0 mm N/A 38 mm N/A 3.5 mm N/A 2.0 mm
YCN-RED-076x2.0X044x1.5 N/A 2 1/2 in N/A 1 1/2 in N/A 76.0 mm N/A 44.5 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-076x3.5X044x2.5 N/A 2 1/2 in N/A 1 1/2 in N/A 76.0 mm N/A 44.5 mm N/A 3.5 mm N/A 2.5 mm
YCN-RED-076x2.0X057x1.5 N/A 2 1/2 in N/A 2 in N/A 76.0 mm N/A 57 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-076x3.5X057x3.0 N/A 2 1/2 in N/A 2 in N/A 76.0 mm N/A 57 mm N/A 3.5 mm N/A 3.0 mm
YCN-RED-089x2.0X038x1.5 N/A 3 in N/A 1 1/4 in N/A 89.0 mm N/A 38 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-089x4.0X038x2.0 N/A 3 in N/A 1 1/4 in N/A 89.0 mm N/A 38 mm N/A 4.0 mm N/A 2.0 mm
YCN-RED-089x2.0X044x1.5 N/A 3 in N/A 1 1/2 in N/A 89.0 mm N/A 44.5 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-089x4.0X044x2.5 N/A 3 in N/A 1 1/2 in N/A 89.0 mm N/A 44.5 mm N/A 4.0 mm N/A 2.5 mm
YCN-RED-089x2.0X057x1.5 N/A 3 in N/A 2 in N/A 89.0 mm N/A 57 mm N/A 2.0 mm N/A 1.5 mm
YCN-RED-089x4.0X157x3.0 N/A 3 in N/A 2 in N/A 89.0 mm N/A 57 mm N/A 4.0 mm N/A 3.0 mm
YCN-RED-089x2.0X276x2.0 N/A 3 in N/A 2 1/2 in N/A 89.0 mm N/A 76 mm N/A 2.0 mm N/A 2.0 mm
YCN-RED-089x4.0X076x3.5 N/A 3 in N/A 2 1/2 in N/A 89.0 mm N/A 76 mm N/A 4.0 mm N/A 3.5 mm
YCN-RED-108x2.5X044x1.5 N/A 4 in N/A 1 1/2 in N/A 108 mm N/A 44.5 mm N/A 2.5 mm N/A 1.5 mm
Unit of Measure
1 2 3 4 5