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  • ANSI B16.5 Class 400 Lap Joint Flange
  • 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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Item #

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Length Thru Hub (Y)

Hub Diameter (X)

Radius (r)

Bore (B)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Holes

N/A 1/2 N/A 3.75 in N/A 0.56 in N/A 1.38 in N/A 1.19 in N/A 0.13 in N/A 0.90 in N/A 2 lb N/A 2.63 in N/A 4 N/A 0.63 in
N/A 3/4 N/A 4.63 in N/A 0.63 in N/A 1.69 in N/A 1.50 in N/A 0.13 in N/A 1.11 in N/A 3 lb N/A 3.25 in N/A 4 N/A 0.75 in
N/A 1 N/A 4.88 in N/A 0.69 in N/A 2.00 in N/A 1.94 in N/A 0.13 in N/A 1.38 in N/A 4 lb N/A 3.50 in N/A 4 N/A 0.75 in
N/A 1 1/4 N/A 5.25 in N/A 0.81 in N/A 2.50 in N/A 2.31 in N/A 0.19 in N/A 1.72 in N/A 5 lb N/A 3.88 in N/A 4 N/A 0.75 in
N/A 1 1/2 N/A 6.13 in N/A 0.88 in N/A 2.88 in N/A 2.56 in N/A 0.25 in N/A 1.97 in N/A 7 lb N/A 4.50 in N/A 4 N/A 0.88 in
N/A 2 N/A 6.50 in N/A 1.00 in N/A 3.63 in N/A 3.06 in N/A 0.31 in N/A 2.46 in N/A 9 lb N/A 5.00 in N/A 8 N/A 0.75 in
N/A 2 1/2 N/A 7.50 in N/A 1.13 in N/A 4.13 in N/A 3.56 in N/A 0.31 in N/A 2.97 in N/A 12 lb N/A 5.88 in N/A 8 N/A 0.88 in
N/A 3 N/A 8.25 in N/A 1.25 in N/A 5.00 in N/A 4.25 in N/A 0.38 in N/A 3.60 in N/A 15 lb N/A 6.63 in N/A 8 N/A 0.88 in
N/A 3 1/2 N/A 9.00 in N/A 1.38 in N/A 5.50 in N/A 4.81 in N/A 0.38 in N/A 4.10 in N/A 20 lb N/A 7.25 in N/A 8 N/A 1.00 in
N/A 4 N/A 10.00 in N/A 1.38 in N/A 2.00 in N/A 5.75 in N/A 0.44 in N/A 4.60 in N/A 25 lb N/A 7.88 in N/A 8 N/A 1.00 in
N/A 5 N/A 11.00 in N/A 1.50 in N/A 2.13 in N/A 7.00 in N/A 0.44 in N/A 5.69 in N/A 29 lb N/A 9.25 in N/A 8 N/A 1.00 in
N/A 6 N/A 12.50 in N/A 1.63 in N/A 2.25 in N/A 8.13 in N/A 0.50 in N/A 6.75 in N/A 42 lb N/A 10.63 in N/A 12 N/A 1.00 in
N/A 8 N/A 15.00 in N/A 1.88 in N/A 2.69 in N/A 10.25 in N/A 0.50 in N/A 8.75 in N/A 64 lb N/A 13.00 in N/A 12 N/A 1.13 in
N/A 10 N/A 17.50 in N/A 2.13 in N/A 4.00 in N/A 12.63 in N/A 0.50 in N/A 10.92 in N/A 110 lb N/A 15.25 in N/A 16 N/A 1.25 in
N/A 12 N/A 20.50 in N/A 2.25 in N/A 4.25 in N/A 14.75 in N/A 0.50 in N/A 12.92 in N/A 150 lb N/A 17.75 in N/A 16 N/A 1.38 in
N/A 14 N/A 23.00 in N/A 2.38 in N/A 4.63 in N/A 16.75 in N/A 0.50 in N/A 14.18 in N/A 205 lb N/A 20.25 in N/A 20 N/A 1.38 in
N/A 16 N/A 25.50 in N/A 2.50 in N/A 5.00 in N/A 19.00 in N/A 0.50 in N/A 16.19 in N/A 260 lb N/A 22.50 in N/A 20 N/A 1.50 in
N/A 18 N/A 28.00 in N/A 2.63 in N/A 5.38 in N/A 21.00 in N/A 0.50 in N/A 18.20 in N/A 315 lb N/A 24.75 in N/A 24 N/A 1.50 in
N/A 20 N/A 30.50 in N/A 2.75 in N/A 5.75 in N/A 23.13 in N/A 0.50 in N/A 20.25 in N/A 385 lb N/A 27.00 in N/A 24 N/A 1.63 in
N/A 22 N/A 33.00 in N/A 2.88 in N/A 6.00 in N/A 25.25 in N/A 0.50 in N/A 22.25 in N/A 455 lb N/A 29.25 in N/A 24 N/A 1.75 in
N/A 24 N/A 36.00 in N/A 3.00 in N/A 6.25 in N/A 27.63 in N/A 0.50 in N/A 24.25 in N/A 570 lb N/A 32.00 in N/A 24 N/A 1.88 in
1 - 21 of 21 | Results Per Page | View | Unit of Measure
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