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  • All dimensions are in inches.
  • These flanges will be furnished with a 1/4" raised face unless otherwise specified.
  • Flat face option available.
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ANSI B16.5 Class 400 Weld Neck Flange
Unit of Measure
Items ANSI B16.5 Class 400 Weld Neck Flange
0H1500WNAN
ANSI B16.5 Class 1500 Welding Neck Flanges
ANSI B16.5 Class 400 Weld Neck Flange
3Q1500WNAN
ANSI B16.5 Class 1500 Welding Neck Flanges
ANSI B16.5 Class 400 Weld Neck Flange
011500WNAN
ANSI B16.5 Class 1500 Welding Neck Flanges
ANSI B16.5 Class 400 Weld Neck Flange
1Q1500WNAN
ANSI B16.5 Class 1500 Welding Neck Flanges
ANSI B16.5 Class 400 Weld Neck Flange
1H1500WNAN
ANSI B16.5 Class 1500 Welding Neck Flanges
Flange Type N/A Welding Neck
Nominal Pipe Size N/A 1/2 N/A 3/4 N/A 1 N/A 1 1/4 N/A 1 1/2
Outside Diameter (O) N/A 4.75 N/A 5.13 N/A 5.88 N/A 6.25 N/A 7.00
Thickness (T) N/A 0.88 N/A 1.00 N/A 1.13 N/A 1.13 N/A 1.25
Raised Face Diameter (R) N/A 1.38 N/A 1.69 N/A 2.00 N/A 2.50 N/A 2.88
Length Thru Hub (Y) N/A 2.38 N/A 2.75 N/A 2.88 N/A 2.88 N/A 3.25
Point of Weld (A) N/A 0.84 N/A 1.05 N/A 1.32 N/A 1.66 N/A 1.90
Hub Diameter (X) N/A 1.50 N/A 1.75 N/A 2.06 N/A 2.50 N/A 2.75
Bore (B) N/A Specified by purchaser
Approximate Weight (lbs) N/A 5 N/A 6 N/A 9 N/A 10 N/A 13
Bolt Circle (C) N/A 3.25 N/A 3.50 N/A 4.00 N/A 4.38 N/A 4.88
Number of Holes N/A 4
Diameter of Holes N/A 0.88 N/A 0.88 N/A 1.00 N/A 1.00 N/A 1.13