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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 dimension is typical finger-tight.
    • BSP Taper Male Elbow for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    BSPT Thread

    C

    H

    L

    R

    W HEX

    4-2K CBZ N/A CPI™ to BSPT N/A 1/8 N/A 1.06 in N/A .75 in N/A .77 in N/A .38 in N/A 1/2 in
    4-4K CBZ N/A CPI™ to BSPT N/A 1/4 N/A 1.06 in N/A .94 in N/A .77 in N/A .56 in N/A 9/16 in
    4-6K CBZ N/A CPI™ to BSPT N/A 3/8 N/A 1.17 in N/A 1.05 in N/A .88 in N/A .56 in N/A 11/16 in
    4-8K CBZ N/A CPI™ to BSPT N/A 1/2 N/A 1.25 in N/A 1.32 in N/A .96 in N/A .75 in N/A 13/16 in
    5-4K CBZ N/A CPI™ to BSPT N/A 1/4 N/A 1.13 in N/A .98 in N/A .84 in N/A .56 in N/A 9/16 in
    6-2K CBZ N/A CPI™ to BSPT N/A 1/8 N/A 1.20 in N/A .82 in N/A .91 in N/A .38 in N/A 5/8 in
    6-4K CBZ N/A CPI™ to BSPT N/A 1/4 N/A 1.20 in N/A 1.02 in N/A .91 in N/A .56 in N/A 5/8 in
    6-6K CBZ N/A CPI™ to BSPT N/A 3/8 N/A 1.23 in N/A 1.05 in N/A .97 in N/A .56 in N/A 11/16 in
    8-6K CBZ N/A CPI™ to BSPT N/A 3/8 N/A 1.42 in N/A 1.13 in N/A 1.02 in N/A .56 in N/A 13/16 in
    8-8K CBZ N/A CPI™ to BSPT N/A 1/2 N/A 1.42 in N/A 1.32 in N/A 1.02 in N/A .75 in N/A 13/16 in
    4MSEL2K N/A A-LOK® to BSPT N/A 1/8 N/A 1.06 in N/A .75 in N/A .77 in N/A .38 in N/A 1/2 in
    4MSEL4K N/A A-LOK® to BSPT N/A 1/4 N/A 1.06 in N/A .94 in N/A .77 in N/A .56 in N/A 9/16 in
    4MSEL6K N/A A-LOK® to BSPT N/A 3/8 N/A 1.17 in N/A 1.05 in N/A .88 in N/A .56 in N/A 11/16 in
    4MSEL8K N/A A-LOK® to BSPT N/A 1/2 N/A 1.25 in N/A 1.32 in N/A .96 in N/A .75 in N/A 13/16 in
    5MSEL4K N/A A-LOK® to BSPT N/A 1/4 N/A 1.13 in N/A .98 in N/A .84 in N/A .56 in N/A 9/16 in
    6MSEL2K N/A A-LOK® to BSPT N/A 1/8 N/A 1.20 in N/A .82 in N/A .91 in N/A .38 in N/A 5/8 in
    6MSEL4K N/A A-LOK® to BSPT N/A 1/4 N/A 1.20 in N/A 1.02 in N/A .91 in N/A .56 in N/A 5/8 in
    6MSEL6K N/A A-LOK® to BSPT N/A 3/8 N/A 1.23 in N/A 1.05 in N/A .97 in N/A .56 in N/A 11/16 in
    8MSEL6K N/A A-LOK® to BSPT N/A 3/8 N/A 1.42 in N/A 1.13 in N/A 1.02 in N/A .56 in N/A 13/16 in
    8MSEL8K N/A A-LOK® to BSPT N/A 1/2 N/A 1.42 in N/A 1.32 in N/A 1.02 in N/A .75 in N/A 13/16 in
    Unit of Measure
    1