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Parker CPI™/A-LOK® Instrumentation Tube Fittings are designed as leak-free connections for process, power and instrumentation applications. The CPI tube fittings utilize a single ferrule for easy make-up and excellent performance in vibration applications. The “spring loaded” effect of the single ferrule creates a constant tension between the fitting body and fitting nut. The A-LOK two ferrule compression tube fittings are designed to provide reliable leak-free connections for applications thatmore
NPT Male Bulkhead Connector for fractional tube
Unit of Measure
1 2 

Item #

Connection Type

NPT Pipe Thread

A

C

L

R

W HEX

1-1 FH2BZ N/A CPI™ to NPT N/A 1/16 N/A 1.19 in N/A .68 in N/A .53 in N/A .38 in N/A 5/16 in
1-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 1.27 in N/A .68 in N/A .53 in N/A .38 in N/A 7/16 in
2-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 1.83 in N/A 1.23 in N/A .97 in N/A .38 in N/A 1/2 in
3-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 1.89 in N/A 1.26 in N/A 1.00 in N/A .38 in N/A 9/16 in
4-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 1.95 in N/A 1.31 in N/A 1.02 in N/A .38 in N/A 5/8 in
4-4 FH2BZ N/A CPI™ to NPT N/A 1/4 N/A 2.13 in N/A 1.31 in N/A 1.02 in N/A .56 in N/A 5/8 in
4-6 FH2BZ N/A CPI™ to NPT N/A 3/8 N/A 2.16 in N/A 1.31 in N/A 1.02 in N/A .56 in N/A 11/16 in
4-8 FH2BZ N/A CPI™ to NPT N/A 1/2 N/A 2.37 in N/A 1.31 in N/A 1.02 in N/A .76 in N/A 7/8 in
5-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 2.08 in N/A 1.42 in N/A 1.12 in N/A .38 in N/A 11/16 in
5-4 FH2BZ N/A CPI™ to NPT N/A 1/4 N/A 2.27 in N/A 1.42 in N/A 1.12 in N/A .56 in N/A 11/16 in
6-2 FH2BZ N/A CPI™ to NPT N/A 1/8 N/A 2.08 in N/A 1.44 in N/A 1.15 in N/A .38 in N/A 3/4 in
6-4 FH2BZ N/A CPI™ to NPT N/A 1/4 N/A 2.27 in N/A 1.44 in N/A 1.15 in N/A .56 in N/A 3/4 in
6-6 FH2BZ N/A CPI™ to NPT N/A 3/8 N/A 2.27 in N/A 1.44 in N/A 1.15 in N/A .56 in N/A 3/4 in
6-8 FH2BZ N/A CPI™ to NPT N/A 1/2 N/A 2.48 in N/A 1.44 in N/A 1.15 in N/A .76 in N/A 7/8 in
8-4 FH2BZ N/A CPI™ to NPT N/A 1/4 N/A 2.49 in N/A 1.65 in N/A 1.25 in N/A .56 in N/A 15/16 in
8-6 FH2BZ N/A CPI™ to NPT N/A 3/8 N/A 2.49 in N/A 1.65 in N/A 1.25 in N/A .56 in N/A 15/16 in
8-8 FH2BZ N/A CPI™ to NPT N/A 1/2 N/A 2.71 in N/A 1.65 in N/A 1.25 in N/A .76 in N/A 15/16 in
8-12 FH2BZ N/A CPI™ to NPT N/A 3/4 N/A 2.72 in N/A 1.65 in N/A 1.25 in N/A .75 in N/A 1 1/8 in
10-6 FH2BZ N/A CPI™ to NPT N/A 3/8 N/A 2.63 in N/A 1.68 in N/A 1.28 in N/A .56 in N/A 1 1/16 in
10-8 FH2BZ N/A CPI™ to NPT N/A 1/2 N/A 2.82 in N/A 1.68 in N/A 1.28 in N/A .76 in N/A 1 1/16 in
12-8 FH2BZ N/A CPI™ to NPT N/A 1/2 N/A 3.00 in N/A 1.87 in N/A 1.47 in N/A .76 in N/A 1 3/16 in
12-12 FH2BZ N/A CPI™ to NPT N/A 3/4 N/A 3.00 in N/A 1.87 in N/A 1.47 in N/A .75 in N/A 1 3/16 in
14-12 FH2BZ N/A CPI™ to NPT N/A 3/4 N/A 3.31 in N/A 2.09 in N/A 1.69 in N/A .75 in N/A 1 3/8 in
16-12 FH2BZ N/A CPI™ to NPT N/A 3/4 N/A 3.54 in N/A 2.27 in N/A 1.78 in N/A .75 in N/A 1 5/8 in
16-16 FH2BZ N/A CPI™ to NPT N/A 1 N/A 3.72 in N/A 2.27 in N/A 1.78 in N/A .94 in N/A 1 5/8 in
Unit of Measure
1 2