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Upchurch Scientific Flangeless Nut for 1/4 inch OD Tubing, 1/2-20 Flat-Bottom, Large Knurl, PEEK, Black, 100/pk - U-655C

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Flangeless Nut for 1/4″ OD Tubing, 1/2-20 Flat-Bottom, Large Knurl, PEEK, Black, 100 per pack

Product Number: U-655C

Categories: Fittings, Fluidic Connections, Large Bore Fittings, Large Bore Flangeless Fittings

This Upchurch Scientific / IDEX Health & Science / Biotech Fluidics PEEK Male Nut is frequently used with large bore fittings with a Flat-Bottom port. It is our most frequently used thread port configuration for low pressure connections. It has a 1/2-20 Flat-Bottom configuration and is for 1/4″ OD tubing.

Large Bore Fittings

  • 5/16-24 or 1/2-20 threads For use with 1/16”, 1/8”, 3/16”, 1/4”, 5/16”,
  • 3.0 mm, or 4.0 mm OD tubing

Each of the Large Bore Fittings comes in a convenient 10-pack and is packaged with the most popularly chosen Ferrule option. The Fittings can be ordered separately by removing the preceding letter “X” from the part number. 

Related Products:

  • XU-655 - Flangeless Fitting System includes the U-650 ferrule, Single
  • XU-655X - Flangeless Fitting System includes the U-650 ferrule, 10/Pk
  • XU-655C - Flangeless Fitting System includes the U-650 ferrule, 100/Pk

Available in the Following Configurations:

  • U-655 - Single
  • U-655C - 100/Pk
Part No. Description Port Pressure Rating Head Style Material (Nut/Washer)
LARGE BORE FITTINGS
XP-130 Flangeless Fitting for 1/8” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) Standard Knurl PEEK Natural/ETFE Yellow
XP-131 Super Flangeless Fitting for 1/8” OD tubing 5/16-24 Flat-Bottom 1,000 psi (69 bar) Standard Knurl PEEK Natural/ETFE Yellow/SST
XP-132 Flangeless Fitting for 3/16” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) Standard Knurl PEEK Natural/ETFE Blue
XP-136 Flangeless Fitting for 1/16” OD tubing 5/16-24 Flat-Bottom 2,000 psi (138 bar) Standard Knurl PEEK Natural/ETFE Blue
XP-137x Super Flangeless Fitting for 3/16” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) Standard Knurl PEEK Black/ETFE Green/SST
XP-141 Super Flangeless Fitting for 1/16” OD tubing 5/16-24 Flat-Bottom 1,350 psi (93 bar) Standard Knurl PEEK Natural/ETFE Yellow/SST
XU-620 Flangeless Fitting for 1/4” OD tubing 1/2-20 Coned 250 psi (17 bar) Large Knurl PEEK Red/ETFE Natural
XU-655 Flangeless Fitting for 1/4” OD tubing 1/2-20 Flat-Bottom 250 psi (17 bar) Large Knurl PEEK Black/ETFE Natural
U-662 Flangeless Fitting for 5/16” OD tubing 1/2-20 Flat-Bottom 250 psi (17 bar) Large Knurl PEEK Black/ETFE Natural
REPLACEMENT FERRULES
P-133 Flangeless Ferrule for 3/16” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) ETFE Blue
P-133N Flangeless Ferrule for 3/16” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) ETFE Natural
P-140 Super Flangeless Ferrule for 3/16” OD tubing 5/16-24 Flat-Bottom 500 psi (34 bar) ETFE Green
U-650 Flangeless Ferrule for 1/4” OD tubing 1/2-20 Flat-Bottom 250 psi (17 bar) ETFE Natural
U-660 Flangeless Ferrule for 5/16” OD tubing 1/2-20 Flat-Bottom 250 psi (17 bar) ETFE Natural

  • Model: U-655C
  • Manufactured by: Upchurch Scientific