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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.
  • A and C dimensions are typical finger-tight.
  • BSP Taper Male Connector for metric tube
    Unit of Measure
    1 2 3 

    Item #

    Connection Type

    Tube O.D.

    BSPT Thread

    A

    C

    R

    W HEX

    M12MSC3/8K N/A A-LOK® to BSPT N/A 12.0 mm N/A 3/8 N/A 43.4 mm N/A 22.0 mm N/A 14.5 mm N/A 22.0 mm
    M12MSC1/2K N/A A-LOK® to BSPT N/A 12.0 mm N/A 1/2 N/A 49.0 mm N/A 22.0 mm N/A 19.2 mm N/A 22.0 mm
    M12MSC3/4K N/A A-LOK® to BSPT N/A 12.0 mm N/A 3/4 N/A 49.5 mm N/A 22.0 mm N/A 19.2 mm N/A 27.0 mm
    M15MSC1/2K N/A A-LOK® to BSPT N/A 15.0 mm N/A 1/2 N/A 49.0 mm N/A 22.0 mm N/A 19.2 mm N/A 24.0 mm
    M16MSC3/8K N/A A-LOK® to BSPT N/A 16.0 mm N/A 3/8 N/A 44.2 mm N/A 22.0 mm N/A 14.5 mm N/A 24.0 mm
    M16MSC1/2K N/A A-LOK® to BSPT N/A 16.0 mm N/A 1/2 N/A 49.0 mm N/A 22.0 mm N/A 19.2 mm N/A 24.0 mm
    M16MSC3/4K N/A A-LOK® to BSPT N/A 16.0 mm N/A 3/4 N/A 49.5 mm N/A 22.0 mm N/A 19.2 mm N/A 27.0 mm
    M18MSC1/2K N/A A-LOK® to BSPT N/A 18.0 mm N/A 1/2 N/A 50.6 mm N/A 22.0 mm N/A 19.2 mm N/A 27.0 mm
    M18MSC3/4K N/A A-LOK® to BSPT N/A 18.0 mm N/A 3/4 N/A 50.6 mm N/A 22.0 mm N/A 19.2 mm N/A 27.0 mm
    M20MSC1/2K N/A A-LOK® to BSPT N/A 20.0 mm N/A 1/2 N/A 52.3 mm N/A 22.0 mm N/A 19.2 mm N/A 30.0 mm
    M20MSC3/4K N/A A-LOK® to BSPT N/A 20.0 mm N/A 3/4 N/A 52.3 mm N/A 22.0 mm N/A 19.2 mm N/A 30.0 mm
    M22MSC3/4K N/A A-LOK® to BSPT N/A 22.0 mm N/A 3/4 N/A 52.3 mm N/A 22.0 mm N/A 19.2 mm N/A 30.0 mm
    M25MSC3/4K N/A A-LOK® to BSPT N/A 25.0 mm N/A 3/4 N/A 57.5 mm N/A 26.5 mm N/A 19.2 mm N/A 35.0 mm
    M25MSC1K N/A A-LOK® to BSPT N/A 25.0 mm N/A 1 N/A 62.3 mm N/A 26.5 mm N/A 24.0 mm N/A 35.0 mm
    Unit of Measure
    1 2 3