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  • Bulkhead Locknut for fractional tube
  • Bulkhead Locknut for fractional tube – dimensions
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.
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    Item #

    A-LOK® Thread

    Tube O.D.

    W HEX

    N/A 10-32 N/A 1/16 in N/A 5/16 in
    N/A 5/16-20 N/A 1/8 in N/A 1/2 in
    N/A 3/8-20 N/A 3/16 in N/A 9/16 in
    N/A 7/16-20 N/A 1/4 in N/A 5/8 in
    N/A 1/2-20 N/A 5/16 in N/A 11/16 in
    N/A 9/16-20 N/A 3/8 in N/A 3/4 in
    N/A 3/4-20 N/A 1/2 in N/A 15/16 in
    N/A 7/8-20 N/A 5/8 in N/A 1-1/16 in
    N/A 1-20 N/A 3/4 in N/A 1-3/16 in
    N/A 1-1/8-20 N/A 7/8 in N/A 1-3/8 in
    N/A 1-5/16-20 N/A 1 in N/A 1-5/8 in
    N/A 7/16-20 N/A 1/4 in N/A 11/16 in
    N/A 9/16-18 N/A 3/8 in N/A 13/16 in
    N/A 3/4-16 N/A 1/2 in N/A 1 in
    N/A 1-1/16-12 N/A 3/4 in N/A 1-3/8 in
    N/A 1-5/16-12 N/A 1 in N/A 1-5/8 in
    1 - 16 of 16 | Results Per Page | View | Unit of Measure
    1