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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 metric tube
    Unit of Measure
    1 2 3 

    Item #

    Connection Type

    Tube O.D.

    BSPT Thread

    C

    H

    L

    R

    W HEX

    CBZ 25-3/4K N/A CPI™ to BSPT N/A 25.0 mm N/A 3/4 N/A 49.0 mm N/A 41.7 mm N/A 36.8 mm N/A 19.2 mm N/A 1 3/8 in
    CBZ 25-1K N/A CPI™ to BSPT N/A 25.0 mm N/A 1 N/A 49.1 mm N/A 46.5 mm N/A 36.8 mm N/A 24.0 mm N/A 1 3/8 in
    M3MSEL1/8K N/A A-LOK® to BSPT N/A 3.0 mm N/A 1/8 N/A 23.6 mm N/A 17.8 mm N/A 17.0 mm N/A 9.7 mm N/A 7/16 in
    M3MSEL1/4K N/A A-LOK® to BSPT N/A 3.0 mm N/A 1/4 N/A 24.6 mm N/A 23.4 mm N/A 18.0 mm N/A 14.5 mm N/A 1/2 in
    M4MSEL1/8K N/A A-LOK® to BSPT N/A 4.0 mm N/A 1/8 N/A 25.4 mm N/A 18.8 mm N/A 18.8 mm N/A 9.7 mm N/A 1/2 in
    M4MSEL1/4K N/A A-LOK® to BSPT N/A 4.0 mm N/A 1/4 N/A 24.6 mm N/A 23.4 mm N/A 18.8 mm N/A 14.5 mm N/A 1/2 in
    M6MSEL1/8K N/A A-LOK® to BSPT N/A 6.0 mm N/A 1/8 N/A 27.0 mm N/A 18.8 mm N/A 19.6 mm N/A 9.7 mm N/A 1/2 in
    M6MSEL1/4K N/A A-LOK® to BSPT N/A 6.0 mm N/A 1/4 N/A 27.0 mm N/A 23.4 mm N/A 19.6 mm N/A 14.5 mm N/A 1/2 in
    M6MSEL3/8K N/A A-LOK® to BSPT N/A 6.0 mm N/A 3/8 N/A 29.8 mm N/A 26.2 mm N/A 22.4 mm N/A 14.5 mm N/A 11/16 in
    M6MSEL1/2K N/A A-LOK® to BSPT N/A 6.0 mm N/A 1/2 N/A 31.8 mm N/A 33.0 mm N/A 24.4 mm N/A 19.2 mm N/A 13/16 in
    M8MSEL1/8K N/A A-LOK® to BSPT N/A 8.0 mm N/A 1/8 N/A 28.8 mm N/A 19.8 mm N/A 21.3 mm N/A 9.7 mm N/A 9/16 in
    M8MSEL1/4K N/A A-LOK® to BSPT N/A 8.0 mm N/A 1/4 N/A 28.8 mm N/A 24.4 mm N/A 21.3 mm N/A 14.5 mm N/A 9/16 in
    M8MSEL3/8K N/A A-LOK® to BSPT N/A 8.0 mm N/A 3/8 N/A 30.6 mm N/A 26.2 mm N/A 23.1 mm N/A 14.5 mm N/A 11/16 in
    M8MSEL1/2K N/A A-LOK® to BSPT N/A 8.0 mm N/A 1/2 N/A 32.7 mm N/A 33.0 mm N/A 25.2 mm N/A 19.2 mm N/A 13/16 in
    M10MSEL1/8K N/A A-LOK® to BSPT N/A 10.0 mm N/A 1/8 N/A 31.5 mm N/A 21.6 mm N/A 23.9 mm N/A 9.7 mm N/A 11/16 in
    M10MSEL1/4K N/A A-LOK® to BSPT N/A 10.0 mm N/A 1/4 N/A 31.5 mm N/A 26.2 mm N/A 23.9 mm N/A 14.5 mm N/A 11/16 in
    M10MSEL3/8K N/A A-LOK® to BSPT N/A 10.0 mm N/A 3/8 N/A 31.5 mm N/A 26.2 mm N/A 23.9 mm N/A 14.5 mm N/A 11/16 in
    M10MSEL1/2K N/A A-LOK® to BSPT N/A 10.0 mm N/A 1/2 N/A 33.5 mm N/A 33.0 mm N/A 25.9 mm N/A 19.2 mm N/A 13/16 in
    M12MSEL1/4K N/A A-LOK® to BSPT N/A 12.0 mm N/A 1/4 N/A 36.0 mm N/A 28.2 mm N/A 25.9 mm N/A 14.5 mm N/A 13/16 in
    M12MSEL3/8K N/A A-LOK® to BSPT N/A 12.0 mm N/A 3/8 N/A 36.0 mm N/A 28.2 mm N/A 25.9 mm N/A 14.5 mm N/A 13/16 in
    M12MSEL1/2K N/A A-LOK® to BSPT N/A 12.0 mm N/A 1/2 N/A 36.0 mm N/A 33.0 mm N/A 25.9 mm N/A 19.2 mm N/A 13/16 in
    M12MSEL3/4K N/A A-LOK® to BSPT N/A 12.0 mm N/A 3/4 N/A 39.8 mm N/A 36.8 mm N/A 29.7 mm N/A 19.2 mm N/A 1 1/16 in
    M16MSEL3/8K N/A A-LOK® to BSPT N/A 16.0 mm N/A 3/8 N/A 38.0 mm N/A 30.2 mm N/A 27.9 mm N/A 14.5 mm N/A 15/16 in
    M16MSEL1/2K N/A A-LOK® to BSPT N/A 16.0 mm N/A 1/2 N/A 38.0 mm N/A 35.1 mm N/A 27.9 mm N/A 19.2 mm N/A 15/16 in
    M18MSEL1/2K N/A A-LOK® to BSPT N/A 18.0 mm N/A 1/2 N/A 39.8 mm N/A 36.8 mm N/A 29.7 mm N/A 19.2 mm N/A 1 1/16 in
    Unit of Measure
    1 2 3