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ANSI B16.5 Lap Joint Flange
Unit of Measure
1 

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

0H600LJAN N/A 1/2 N/A 3.75 in N/A 0.56 in N/A 0.88 in N/A 1.50 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
3Q600LJAN N/A 3/4 N/A 4.63 in N/A 0.63 in N/A 1.00 in N/A 1.88 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
01600LJAN N/A 1 N/A 4.88 in N/A 0.69 in N/A 1.06 in N/A 2.13 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
1Q600LJAN N/A 1 1/4 N/A 5.25 in N/A 0.81 in N/A 1.13 in N/A 2.50 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
1H600LJAN N/A 1 1/2 N/A 6.13 in N/A 0.88 in N/A 1.25 in N/A 2.75 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
02600LJAN N/A 2 N/A 6.50 in N/A 1.00 in N/A 1.44 in N/A 3.31 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
2H600LJAN N/A 2 1/2 N/A 7.50 in N/A 1.13 in N/A 1.63 in N/A 3.94 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
03600LJAN N/A 3 N/A 8.25 in N/A 1.25 in N/A 1.81 in N/A 4.63 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
3H600LJAN N/A 3 1/2 N/A 9.00 in N/A 1.38 in N/A 1.94 in N/A 5.25 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
04600LJAN N/A 4 N/A 10.75 in N/A 1.50 in N/A 2.13 in N/A 6.00 in N/A 0.44 in N/A 4.60 in N/A 36 lb N/A 8.50 in N/A 8 N/A 1.00 in
05600LJAN N/A 5 N/A 13.00 in N/A 1.75 in N/A 2.38 in N/A 7.44 in N/A 0.44 in N/A 5.69 in N/A 61 lb N/A 10.50 in N/A 8 N/A 1.13 in
06600LJAN N/A 6 N/A 14.00 in N/A 1.88 in N/A 2.63 in N/A 8.75 in N/A 0.50 in N/A 6.75 in N/A 78 lb N/A 11.50 in N/A 12 N/A 1.13 in
08600LJAN N/A 8 N/A 16.50 in N/A 2.19 in N/A 3.00 in N/A 10.75 in N/A 0.50 in N/A 8.75 in N/A 110 lb N/A 13.75 in N/A 12 N/A 1.25 in
10600LJAN N/A 10 N/A 20.00 in N/A 2.50 in N/A 4.38 in N/A 13.50 in N/A 0.50 in N/A 10.92 in N/A 170 lb N/A 17.00 in N/A 16 N/A 1.38 in
12600LJAN N/A 12 N/A 22.00 in N/A 2.63 in N/A 4.63 in N/A 15.75 in N/A 0.50 in N/A 12.92 in N/A 200 lb N/A 19.25 in N/A 20 N/A 1.38 in
14600LJAN N/A 14 N/A 23.75 in N/A 2.75 in N/A 5.00 in N/A 17.00 in N/A 0.50 in N/A 14.18 in N/A 250 lb N/A 20.75 in N/A 20 N/A 1.50 in
16600LJAN N/A 16 N/A 27.00 in N/A 3.00 in N/A 5.50 in N/A 19.50 in N/A 0.50 in N/A 16.19 in N/A 365 lb N/A 23.75 in N/A 20 N/A 1.63 in
18600LJAN N/A 18 N/A 29.25 in N/A 3.25 in N/A 6.00 in N/A 21.50 in N/A 0.50 in N/A 18.20 in N/A 435 lb N/A 25.75 in N/A 20 N/A 1.75 in
20600LJAN N/A 20 N/A 32.00 in N/A 3.50 in N/A 6.50 in N/A 24.00 in N/A 0.50 in N/A 20.25 in N/A 570 lb N/A 28.50 in N/A 24 N/A 1.75 in
22600LJAN N/A 22 N/A 34.25 in N/A 3.75 in N/A 6.88 in N/A 26.25 in N/A 0.50 in N/A 22.25 in N/A 670 lb N/A 30.63 in N/A 24 N/A 1.88 in
24600LJAN N/A 24 N/A 37.00 in N/A 4.00 in N/A 7.25 in N/A 28.25 in N/A 0.50 in N/A 24.25 in N/A 810 lb N/A 33.00 in N/A 24 N/A 2.00 in
Unit of Measure
1