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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 that specify a two ferrule system. These single and two ferrule fitting designs are manufactured to the highest quality standards and are available in a broad range of sizes, materials and configurations.

NOTE:
  • Dimensions for reference only, subject to change.
  • C dimensions are typical finger-tight.
  • Eliminates the extra connection when adapting with a tube stub reducer.
    • Drop Size Tees for fractional tube
    Unit of Measure
    1 2 3 4 5 

    Item #

    Connection Type

    T1 Tube O.D.

    T2 Tube O.D.

    T3 Tube O.D.

    A

    L1

    C1

    L2

    C2

    L3

    C3

    W HEX

    12-6-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 3/4 in N/A 3/8 in N/A 3/8 in N/A 3.01 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.45 in N/A 1.16 in N/A 1.45 in N/A 1 1/16 in
    12-10-8 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 3/4 in N/A 5/8 in N/A 1/2 in N/A 3.12 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.56 in N/A 1 1/16 in
    12-10-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 3/4 in N/A 5/8 in N/A 3/8 in N/A 3.12 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.45 in N/A 1 1/16 in
    12-8-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 3/4 in N/A 1/2 in N/A 3/8 in N/A 3.12 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.56 in N/A 1.16 in N/A 1.45 in N/A 1 1/16 in
    14-14-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 7/8 in N/A 3/8 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.65 in N/A 1 3/8 in
    14-14-4 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 7/8 in N/A 1/4 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.30 in N/A 1.59 in N/A 1 3/8 in
    14-12-12 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 3/4 in N/A 3/4 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    14-12-8 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 3/4 in N/A 1/2 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    14-12-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 3/4 in N/A 3/8 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.65 in N/A 1 3/8 in
    14-10-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 5/8 in N/A 3/8 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.65 in N/A 1 3/8 in
    14-8-12 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 7/8 in N/A 1/2 in N/A 3/4 in N/A 3.52 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-16-12 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 3/4 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-16-10 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 5/8 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-16-8 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 1/2 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-16-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 3/8 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.65 in N/A 1 3/8 in
    16-16-4 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 1/4 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.30 in N/A 1.59 in N/A 1 3/8 in
    16-12-16 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 3/4 in N/A 1 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.45 in N/A 1.94 in N/A 1 3/8 in
    16-14-14 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 7/8 in N/A 7/8 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-14-12 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 7/8 in N/A 3/4 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-14-8 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 7/8 in N/A 1/2 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-14-6 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 7/8 in N/A 3/8 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.65 in N/A 1 3/8 in
    16-14-4 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 7/8 in N/A 1/4 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.30 in N/A 1.59 in N/A 1 3/8 in
    16-16-14 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 1 in N/A 7/8 in N/A 3.88 in N/A 1.45 in N/A 1.94 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-12-10 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 3/4 in N/A 5/8 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    16-12-8 JLZ N/A A-LOK® x A-LOK® x A-LOK® N/A 1 in N/A 3/4 in N/A 1/2 in N/A 3.70 in N/A 1.45 in N/A 1.94 in N/A 1.36 in N/A 1.76 in N/A 1.36 in N/A 1.76 in N/A 1 3/8 in
    Unit of Measure
    1 2 3 4 5