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Parker Hannifin, original Patent Holder (US 6851729 B2), for "Tube Fitting, Medium Pressure" developed the MPI Medium Pressure compression fitting connections to be secure and gas-tight while being made manually (wrench turns) or hydraulic set tool. This connection has application throughout industry, including off-shore oil and gas exploration platforms, research labs, and other facilities that require operating pressures to 15,000 psi (1035 bar).

MPI™ Fittings are ideally suited to handle liquids, gases, or chemicals and can be used on a wide variety of tubing materials including: Instrument Grade thick-walled annealed 316 SS, 1/8th Hard (cold drawn) 316 or 317 SS MPI tubing, and 2507 Super Duplex MPI tubing up to 1" OD. Every Parker MPI™ Fitting is supplied complete with both ferrules and compression gland nut, ready to install.

NOTE:
  • Add to the part number either -SS or -2507 depending on selected material. (Example: 16-16 FBMP7-SS)
  • All male o-ring ends for MPI™ fittings are heavy duty and comply with SAE J1926-2. This end has maximum thread engagement for strength and requires the minimum full thread engagement specified in SAE J9126 for the female port. Standard O-ring material is Nitrile #N0552-90.
  • Add “-Z6” to part number for part assembled with preset ferrules and nuts.
  • Dimensions in inches are for reference only, subject to change.
  • Pressure Rating of Fittings is controlled by tubing selected and choice of ASME Standard.
  • -XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
  • T7HOA MPI™ Tube Stub to Male SAE O-ring
    Unit of Measure
    1 

    Item #

    Connection Type

    MPI™ Tube Stub

    SAE Oring End

    A

    B

    T Thread

    W HEX

    Working MAWP Pressure

    4-4 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/4 N/A 1/4 N/A 2.25 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    4-6 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/4 N/A 3/8 N/A 2.35 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    4-8 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/4 N/A 1/2 N/A 2.49 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    6-4 T7HOA-SS N/A Tube Stub to Straight Thread N/A 3/8 N/A 1/4 N/A 2.48 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    6-6 T7HOA-SS N/A Tube Stub to Straight Thread N/A 3/8 N/A 3/8 N/A 2.58 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    6-8 T7HOA-SS N/A Tube Stub to Straight Thread N/A 3/8 N/A 1/2 N/A 2.72 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    8-4 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/2 N/A 1/4 N/A 2.75 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    8-6 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/2 N/A 3/8 N/A 2.85 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    8-8 T7HOA-SS N/A Tube Stub to Straight Thread N/A 1/2 N/A 1/2 N/A 2.99 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    9-4 T7HOA-SS N/A Tube Stub to Straight Thread N/A 9/16 N/A 1/4 N/A 2.81 in N/A .43 in N/A 7/16-20 N/A 5/8 in N/A 12500 psig
    9-6 T7HOA-SS N/A Tube Stub to Straight Thread N/A 9/16 N/A 3/8 N/A 2.91 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    9-8 T7HOA-SS N/A Tube Stub to Straight Thread N/A 9/16 N/A 1/2 N/A 3.05 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    4-4 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/4 N/A 1/4 N/A 2.25 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    4-6 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/4 N/A 3/8 N/A 2.35 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    4-8 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/4 N/A 1/2 N/A 2.49 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    6-4 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 3/8 N/A 1/4 N/A 2.48 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    6-6 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 3/8 N/A 3/8 N/A 2.58 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    6-8 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 3/8 N/A 1/2 N/A 2.72 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    8-4 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/2 N/A 1/4 N/A 2.75 in N/A .43 in N/A 7/16-20 N/A 9/16 in N/A 12500 psig
    8-6 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/2 N/A 3/8 N/A 2.85 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    8-8 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 1/2 N/A 1/2 N/A 2.99 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    9-4 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 9/16 N/A 1/4 N/A 2.81 in N/A .43 in N/A 7/16-20 N/A 5/8 in N/A 12500 psig
    9-6 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 9/16 N/A 3/8 N/A 2.91 in N/A .47 in N/A 9/16-18 N/A 11/16 in N/A 12500 psig
    9-8 T7HOA-2507 N/A Tube Stub to Straight Thread N/A 9/16 N/A 1/2 N/A 3.05 in N/A .55 in N/A 3/4-16 N/A 7/8 in N/A 12500 psig
    Unit of Measure
    1