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Tube Bulkhead Union Fittings

Item # Tube Outer Diameter Panel Hole (Drill Size) Dimension A Dimension B Dimension C
BU-F-2 1/8 in 21/64 1.51 in 0.88 in 0.44 in
BU-F-3 3/16 in 25/64 1.51 in 0.88 in 0.44 in
BU-F-4 1/4 in 29/64 1.81 in 0.94 in 0.56 in
BU-F-5 5/16 in 37/64 1.81 in 0.94 in 0.75 in
BU-F-6 3/8 in 45/64 1.81 in 0.94 in 0.75 in
BU-F-8 1/2 in 57/64 2.25 in 1.19 in 0.94 in
BU-F-10 5/8 in 1-1/64 2.33 in 1.23 in 1.13 in
BU-F-12 3/4 in 1-9/64 2.38 in 1.25 in 1.13 in
BU-F-16 1 in 1-25/64 2.53 in 1.33 in 1.5 in
BU-F-11 1.1 in 1-1/2 2.62 in 1.44 in 1.59 in
BU-M-4 4 mm 25/64 1.81 in 0.88 in 0.44 in
BU-M-6 6 mm 29/64 1.81 in 0.94 in 0.56 in
BU-M-8 8 mm 37/64 1.81 in 0.94 in 0.75 in
BU-M-10 10 mm 45/64 1.81 in 0.94 in 0.75 in
BU-M-12 12 mm 57/64 2.25 in 1.19 in 0.94 in