COMPANY HEADER
Print Back
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.
  • See Catalog 4260 Pipe/ISO Fittings for detailed information.
  • Sealing Washer on page 76 to be used with this fitting.
    • BSPP Gauge Connector for metric tube
    Unit of Measure
    1 2 

    Item #

    Connection Type

    Tube O.D.

    BSPP Thread

    A

    C

    W HEX

    GBZ 3-1/4GC N/A CPI™ to FBSPP N/A 3.0 mm N/A 1/4 N/A 35.3 mm N/A 15.3 mm N/A 19.0 mm
    GBZ 6-1/4GC N/A CPI™ to FBSPP N/A 6.0 mm N/A 1/4 N/A 37.7 mm N/A 17.7 mm N/A 19.0 mm
    GBZ 6-3/8GC N/A CPI™ to FBSPP N/A 6.0 mm N/A 3/8 N/A 37.7 mm N/A 17.7 mm N/A 22.0 mm
    GBZ 6-1/2GC N/A CPI™ to FBSPP N/A 6.0 mm N/A 1/2 N/A 43.2 mm N/A 17.7 mm N/A 27.0 mm
    GBZ 8-1/4GC N/A CPI™ to FBSPP N/A 8.0 mm N/A 1/4 N/A 38.5 mm N/A 18.6 mm N/A 19.0 mm
    GBZ 8-3/8GC N/A CPI™ to FBSPP N/A 8.0 mm N/A 3/8 N/A 40.8 mm N/A 18.6 mm N/A 22.0 mm
    GBZ 8-1/2GC N/A CPI™ to FBSPP N/A 8.0 mm N/A 1/2 N/A 44.0 mm N/A 18.6 mm N/A 27.0 mm
    GBZ 10-1/4GC N/A CPI™ to FBSPP N/A 10.0 mm N/A 1/4 N/A 39.4 mm N/A 19.5 mm N/A 19.0 mm
    GBZ 10-3/8GC N/A CPI™ to FBSPP N/A 10.0 mm N/A 3/8 N/A 38.8 mm N/A 19.5 mm N/A 22.0 mm
    GBC 10-1/2GC N/A CPI™ to FBSPP N/A 10.0 mm N/A 1/2 N/A 41.3 mm N/A 19.5 mm N/A 27.0 mm
    GBC 12-1/4GC N/A CPI™ to FBSPP N/A 12.0 mm N/A 1/4 N/A 41.9 mm N/A 22.0 mm N/A 22.0 mm
    GBC 12-3/8GC N/A CPI™ to FBSPP N/A 12.0 mm N/A 3/8 N/A 44.4 mm N/A 22.0 mm N/A 22.0 mm
    GBC 12-1/2GC N/A CPI™ to FBSPP N/A 12.0 mm N/A 1/2 N/A 48.2 mm N/A 22.0 mm N/A 27.0 mm
    M3GC1/4R N/A A-LOK® to FBSPP N/A 3.0 mm N/A 1/4 N/A 35.3 mm N/A 15.3 mm N/A 19.0 mm
    M6GC1/4R N/A A-LOK® to FBSPP N/A 6.0 mm N/A 1/4 N/A 37.7 mm N/A 17.7 mm N/A 19.0 mm
    M6GC3/8R N/A A-LOK® to FBSPP N/A 6.0 mm N/A 3/8 N/A 37.7 mm N/A 17.7 mm N/A 22.0 mm
    M6GC1/2R N/A A-LOK® to FBSPP N/A 6.0 mm N/A 1/2 N/A 43.2 mm N/A 17.7 mm N/A 27.0 mm
    M8GC1/4R N/A A-LOK® to FBSPP N/A 8.0 mm N/A 1/4 N/A 38.5 mm N/A 18.6 mm N/A 19.0 mm
    M8GC3/8R N/A A-LOK® to FBSPP N/A 8.0 mm N/A 3/8 N/A 40.8 mm N/A 18.6 mm N/A 22.0 mm
    M8GC1/2R N/A A-LOK® to FBSPP N/A 8.0 mm N/A 1/2 N/A 44.0 mm N/A 18.6 mm N/A 27.0 mm
    M10GC1/4R N/A A-LOK® to FBSPP N/A 10.0 mm N/A 1/4 N/A 39.4 mm N/A 19.5 mm N/A 19.0 mm
    M10GC3/8R N/A A-LOK® to FBSPP N/A 10.0 mm N/A 3/8 N/A 38.8 mm N/A 19.5 mm N/A 22.0 mm
    M10GC1/2R N/A A-LOK® to FBSPP N/A 10.0 mm N/A 1/2 N/A 41.3 mm N/A 19.5 mm N/A 27.0 mm
    M12GC1/4R N/A A-LOK® to FBSPP N/A 12.0 mm N/A 1/4 N/A 41.9 mm N/A 22.0 mm N/A 22.0 mm
    M12GC3/8R N/A A-LOK® to FBSPP N/A 12.0 mm N/A 3/8 N/A 44.4 mm N/A 22.0 mm N/A 22.0 mm
    Unit of Measure
    1 2