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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.
  • Parts are supplied with nitrile o-rings as standard. For Fluorocarbon o-rings, add the suffix “-VO”. Other o-rings available upon request.
    • Male Connector to O-Ring Straight Thread for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    Straight Thread Size

    A

    C

    R

    X Dia.

    W HEX

    O-Ring Arp Uniform Dash No.

    1-2 ZHBA5 N/A CPI™ to Straight Thread N/A 5/16-24 N/A 1.06 in N/A .43 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    2-2 ZHBA5 N/A CPI™ to Straight Thread N/A 5/16-24 N/A 1.29 in N/A .60 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    3-3 ZHBA5 N/A CPI™ to Straight Thread N/A 3/8-24 N/A 1.35 in N/A .64 in N/A .38 in N/A .62 in N/A 5/8 in N/A 2-012
    4-4 ZHBA5 N/A CPI™ to Straight Thread N/A 7/16-20 N/A 1.51 in N/A .70 in N/A .41 in N/A .74 in N/A 3/4 in N/A 2-111
    5-5 ZHBA5 N/A CPI™ to Straight Thread N/A 1/2-20 N/A 1.61 in N/A .73 in N/A .44 in N/A .86 in N/A 7/8 in N/A 2-112
    6-6 ZHBA5 N/A CPI™ to Straight Thread N/A 9/16-18 N/A 1.67 in N/A .76 in N/A .44 in N/A .93 in N/A 15/16 in N/A 2-113
    8-8 ZHBA5 N/A CPI™ to Straight Thread N/A 3/4-16 N/A 1.81 in N/A .87 in N/A .47 in N/A 1.12 in N/A 1 1/8 in N/A 2-116
    10-10 ZHBA5 N/A CPI™ to Straight Thread N/A 7/8-14 N/A 1.90 in N/A .87 in N/A .47 in N/A 1.30 in N/A 1 3/8 in N/A 2-212
    12-12 ZHBA5 N/A CPI™ to Straight Thread N/A 1 1/16-12 N/A 2.06 in N/A .87 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    14-12 ZHBA5 N/A CPI™ to Straight Thread N/A 1 1/16-12 N/A 2.06 in N/A .87 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    16-16 ZHBA5 N/A CPI™ to Straight Thread N/A 1 5/16-12 N/A 2.30 in N/A 1.05 in N/A .56 in N/A 1.74 in N/A 1 3/4 in N/A 2-219
    1M2SC2 N/A A-LOK® to Straight Thread N/A 5/16-24 N/A 1.06 in N/A .43 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    2M2SC2 N/A A-LOK® to Straight Thread N/A 5/16-24 N/A 1.29 in N/A .60 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    3M2SC3 N/A A-LOK® to Straight Thread N/A 3/8-24 N/A 1.35 in N/A .64 in N/A .38 in N/A .62 in N/A 5/8 in N/A 2-012
    4M2SC4 N/A A-LOK® to Straight Thread N/A 7/16-20 N/A 1.51 in N/A .70 in N/A .41 in N/A .74 in N/A 3/4 in N/A 2-111
    5M2SC5 N/A A-LOK® to Straight Thread N/A 1/2-20 N/A 1.61 in N/A .73 in N/A .44 in N/A .86 in N/A 7/8 in N/A 2-112
    6M2SC6 N/A A-LOK® to Straight Thread N/A 9/16-18 N/A 1.67 in N/A .76 in N/A .44 in N/A .93 in N/A 15/16 in N/A 2-113
    8M2SC8 N/A A-LOK® to Straight Thread N/A 3/4-16 N/A 1.81 in N/A .87 in N/A .47 in N/A 1.12 in N/A 1 1/8 in N/A 2-116
    10M2SC10 N/A A-LOK® to Straight Thread N/A 7/8-14 N/A 1.90 in N/A .87 in N/A .47 in N/A 1.30 in N/A 1 3/8 in N/A 2-212
    12M2SC12 N/A A-LOK® to Straight Thread N/A 1 1/16-12 N/A 2.06 in N/A .87 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    14M2SC12 N/A A-LOK® to Straight Thread N/A 1 1/16-12 N/A 2.06 in N/A .87 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    16M2SC16 N/A A-LOK® to Straight Thread N/A 1 5/16-12 N/A 2.30 in N/A 1.05 in N/A .56 in N/A 1.74 in N/A 1 3/4 in N/A 2-219
    Unit of Measure
    1