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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:
  • Dimensions for reference only, subject to change.
  • Connects fractional tube end to male ISO parallel thread (gauge).
  • Copper Washer, shown below, for female thread sealing, must be used on BSPP female end shown.
  • Tube stub is pre-grooved as standard. Generic (non-grooved) can be ordered through Quick Response.
    • BSPP Female Gauge Adapter
    Unit of Measure
    1 

    Item #

    Connection Type

    Tube O.D.

    BSPP Thread

    A

    K

    W HEX

    Min. Bore

    4-4GC T2HG N/A Tube to FBSPP N/A 1/4 in N/A 1/4-19 N/A 1.48 in N/A .64 in N/A 3/4 in N/A .16 in
    6-6GC T2HG N/A Tube to FBSPP N/A 3/8 in N/A 3/8-19 N/A 1.63 in N/A .72 in N/A 7/8 in N/A .28 in
    8-8GC T2HG N/A Tube to FBSPP N/A 1/2 in N/A 1/2-14 N/A 2.14 in N/A .98 in N/A 1 1/16 in N/A .38 in
    4FA4GC N/A Tube to FBSPP N/A 1/4 in N/A 1/4-19 N/A 1.34 in N/A .63 in N/A 3/4 in N/A .16 in
    6FA6GC N/A Tube to FBSPP N/A 3/8 in N/A 3/8-19 N/A 1.55 in N/A .69 in N/A 7/8 in N/A .28 in
    8FA8GC N/A Tube to FBSPP N/A 1/2 in N/A 1/2-14 N/A 1.92 in N/A .91 in N/A 1 1/16 in N/A .38 in
    Unit of Measure
    1