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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.
  • Standard Bore will be furnished unless otherwise specified.

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ANSI B16.5 Class 400 Lap Joint Flange
Unit of Measure
Items ANSI B16.5 Class 400 Lap Joint Flange
0H400LJAN
ANSI B16.5 Class 400 Lap Joint Flanges
ANSI B16.5 Class 400 Lap Joint Flange
3Q400LJAN
ANSI B16.5 Class 400 Lap Joint Flanges
ANSI B16.5 Class 400 Lap Joint Flange
01400LJAN
ANSI B16.5 Class 400 Lap Joint Flanges
ANSI B16.5 Class 400 Lap Joint Flange
1Q400LJAN
ANSI B16.5 Class 400 Lap Joint Flanges
ANSI B16.5 Class 400 Lap Joint Flange
1H400LJAN
ANSI B16.5 Class 400 Lap Joint Flanges
Flange Type N/A Lap Joint
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 3.75 in N/A 4.63 in N/A 4.88 in N/A 5.25 in N/A 6.13 in
Thickness (T) N/A 0.56 in N/A 0.63 in N/A 0.69 in N/A 0.81 in N/A 0.88 in
Length Thru Hub (Y) N/A 1.38 in N/A 1.69 in N/A 2.00 in N/A 2.50 in N/A 2.88 in
Hub Diameter (X) N/A 1.19 in N/A 1.50 in N/A 1.94 in N/A 2.31 in N/A 2.56 in
Radius (r) N/A 0.13 in N/A 0.13 in N/A 0.13 in N/A 0.19 in N/A 0.25 in
Bore (B) N/A 0.90 in N/A 1.11 in N/A 1.38 in N/A 1.72 in N/A 1.97 in
Approximate Weight N/A 2 lb N/A 3 lb N/A 4 lb N/A 5 lb N/A 7 lb
Bolt Circle (C) N/A 2.63 in N/A 3.25 in N/A 3.50 in N/A 3.88 in N/A 4.50 in
Number of Holes N/A 4
Diameter of Holes N/A 0.63 in N/A 0.75 in N/A 0.75 in N/A 0.75 in N/A 0.88 in