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.
  • Add -Z6 for assembly of nuts and ferrules on the tube stub end.
  • Parts are supplied with nitrile o-rings as standard. For Fluorocarbon o-rings, add the suffix "-VO". Other o-rings available upon request.
    • Tube End to O-Ring Straight Thread for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    Tube O.D.

    Straight Thread Size

    A

    K

    R

    X Dia.

    W HEX

    O-Ring Arp Uniform Dash No.

    2-2 T2HOA5 N/A Tube x Straight Thread N/A 1/8 in N/A 5/16-24 N/A 1.22 in N/A .53 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    3-3 T2HOA5 N/A Tube x Straight Thread N/A 3/16 in N/A 3/8-24 N/A 1.38 in N/A .56 in N/A .38 in N/A .62 in N/A 5/8 in N/A 2-012
    4-4 T2HOA5 N/A Tube x Straight Thread N/A 1/4 in N/A 7/16-20 N/A 1.55 in N/A .63 in N/A .41 in N/A .74 in N/A 3/4 in N/A 2-111
    5-5 T2HOA5 N/A Tube x Straight Thread N/A 5/16 in N/A 1/2-20 N/A 1.64 in N/A .66 in N/A .44 in N/A .86 in N/A 7/8 in N/A 2-112
    6-6 T2HOA5 N/A Tube x Straight Thread N/A 3/8 in N/A 9/16-18 N/A 1.70 in N/A .69 in N/A .44 in N/A .93 in N/A 15/16 in N/A 2-113
    8-8 T2HOA5 N/A Tube x Straight Thread N/A 1/2 in N/A 3/4-16 N/A 1.95 in N/A .91 in N/A .47 in N/A 1.12 in N/A 1 1/8 in N/A 2-116
    10-10 T2HOA5 N/A Tube x Straight Thread N/A 5/8 in N/A 7/8-14 N/A 2.12 in N/A .97 in N/A .47 in N/A 1.30 in N/A 1 3/8 in N/A 2-212
    12-12 T2HOA5 N/A Tube x Straight Thread N/A 3/4 in N/A 1 1/16-12 N/A 2.16 in N/A .97 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    16-16 T2HOA5 N/A Tube x Straight Thread N/A 1 in N/A 1 5/16-12 N/A 2.47 in N/A 1.22 in N/A .56 in N/A 1.74 in N/A 1 3/4 in N/A 2-219
    2M2TU2 N/A Tube x Straight Thread N/A 1/8 in N/A 5/16-24 N/A 1.22 in N/A .53 in N/A .34 in N/A .55 in N/A 9/16 in N/A 2-011
    3M2TU3 N/A Tube x Straight Thread N/A 3/16 in N/A 3/8-24 N/A 1.38 in N/A .56 in N/A .38 in N/A .62 in N/A 5/8 in N/A 2-012
    4M2TU4 N/A Tube x Straight Thread N/A 1/4 in N/A 7/16-20 N/A 1.55 in N/A .63 in N/A .41 in N/A .74 in N/A 3/4 in N/A 2-111
    5M2TU5 N/A Tube x Straight Thread N/A 5/16 in N/A 1/2-20 N/A 1.64 in N/A .66 in N/A .44 in N/A .86 in N/A 7/8 in N/A 2-112
    6M2TU6 N/A Tube x Straight Thread N/A 3/8 in N/A 9/16-18 N/A 1.70 in N/A .69 in N/A .44 in N/A .93 in N/A 15/16 in N/A 2-113
    8M2TU8 N/A Tube x Straight Thread N/A 1/2 in N/A 3/4-16 N/A 1.95 in N/A .91 in N/A .47 in N/A 1.12 in N/A 1 1/8 in N/A 2-116
    10M2TU10 N/A Tube x Straight Thread N/A 5/8 in N/A 7/8-14 N/A 2.12 in N/A .97 in N/A .47 in N/A 1.30 in N/A 1 3/8 in N/A 2-212
    12M2TU12 N/A Tube x Straight Thread N/A 3/4 in N/A 1 1/16-12 N/A 2.16 in N/A .97 in N/A .56 in N/A 1.49 in N/A 1 1/2 in N/A 2-215
    16M2TU16 N/A Tube x Straight Thread N/A 1 in N/A 1 5/16-12 N/A 2.47 in N/A 1.22 in N/A .56 in N/A 1.74 in N/A 1 3/4 in N/A 2-219
    Unit of Measure
    1