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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.
  • For use with M2SC and M2TU fittings on Parker Catalog.
  • Accessory Locknut
    Unit of Measure
    1 

    Item #

    Straight Thread

    W HEX

    2 L5NR N/A 5/16-24 N/A 7/16 in
    3 L5NR N/A 3/8-24 N/A 1/2 in
    4 L5NR N/A 7/16-20 N/A 9/16 in
    5 L5NR N/A 1/2-20 N/A 5/8 in
    6 L5NR N/A 9/16-18 N/A 11/16 in
    8 L5NR N/A 3/4-16 N/A 7/8 in
    10 L5NR N/A 7/8-14 N/A 1 in
    12 L5NR N/A 1-1/16-12 N/A 1.25 in
    14 L5NR N/A 1-3/16-12 N/A 1-3/8 in
    16 L5NR N/A 1-5/16-12 N/A 1.5 in
    Unit of Measure
    1