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Parker ISO Conversion Fittings are designed to the highest quality standards to allow connections between components and systems which use both NPT and ISO Thread configurations. Conversion fittings are maintained under strict quality control programs.

NOTE:
  • Used to connect a male NPT and a female BSPP threaded component.
  • Bonded Seal, must be used with BSPP end shown.
  • Female NPT to Male BSPP Adapter
    Unit of Measure
    1 

    Item #

    Connection Type

    NPT Thread T1

    BSPP Thread T2

    W HEX

    Length

    Working Pressure (Brass)

    Working Pressure (Stainless Steel)

    2-2R RA N/A FNPT x BSPP N/A 1/8-27 N/A 1/8-28 N/A 9/16 in N/A .99 in N/A 3200 psi220 bar N/A 6100 psi420 bar
    4-4R RA N/A FNPT x BSPP N/A 1/4-18 N/A 1/4-19 N/A 3/4 in N/A 1.31 in N/A 3300 psi230 bar N/A 6200 psi430 bar
    6-6R RA N/A FNPT x BSPP N/A 3/8-18 N/A 3/8-19 N/A 7/8 in N/A 1.41 in N/A 2600 psi180 bar N/A 5000 psi340 bar
    8-8R RA N/A FNPT x BSPP N/A 1/2-14 N/A 1/2-14 N/A 1 1/8 in N/A 1.74 in N/A 2400 psi160 bar N/A 4600 psi320 bar
    12-12R RA N/A FNPT x BSPP N/A 3/4-14 N/A 3/4-14 N/A 1 5/16 in N/A 2.00 in N/A 2300 psi160 bar N/A 4300 psi300 bar
    16-16R RA N/A FNPT x BSPP N/A 1-11 1/2 N/A 1-11 N/A 1 5/8 in N/A 2.10 in N/A 2200 psi150 bar N/A 4100 psi280 bar
    Unit of Measure
    1