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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.
  • For use with SAE J.1926/1 port can also be used with MS-16142 port.
  • Parts are supplied with nitrile o-rings as standard. For Fluorocarbon o-rings, add the suffix "-VO".
  • Other o-rings available upon request.
  • Adapter fitting for connection of compression fittings to welded systems.
  • Bulkhead to Conversion Adapter for fractional tube
    Unit of Measure
    Items Bulkhead to Conversion Adapter for fractional tube
    4-6 AH2BZ
    Bulkhead to Conversion Adapter for fractional tube
    Bulkhead to Conversion Adapter for fractional tube
    6-6 AH2BZ
    Bulkhead to Conversion Adapter for fractional tube
    Bulkhead to Conversion Adapter for fractional tube
    4-6 AH2LZ
    Bulkhead to Conversion Adapter for fractional tube
    Bulkhead to Conversion Adapter for fractional tube
    6-6 AH2LZ
    Bulkhead to Conversion Adapter for fractional tube
    Connection Type N/A CPI™ x Straight Thread N/A CPI™ x Straight Thread N/A A-LOK® x Straight Thread N/A A-LOK® x Straight Thread
    Tube O.D. N/A 1/4 in N/A 3/8 in N/A 1/4 in N/A 3/8 in
    Straight Thread Size N/A 9/16-18
    A N/A 1.74 in N/A 1.81 in N/A 1.74 in N/A 1.81 in
    C N/A 1.17 in N/A 1.24 in N/A 1.17 in N/A 1.24 in
    R N/A .39 in
    L N/A .88 in N/A .94 in N/A .88 in N/A .94 in
    W HEX N/A 3/4 in
    Bulkhead Hole Drill Size N/A 37/64 in
    Maximum Bulkhead Thickness N/A 9/16 in