Upchurch / IDEX Super Flangeless™ Fittings provide the highest pressure holding capability in a flat-bottom fitting system that we offer. Our unique design eliminates loosening of fittings due to tubing twist and holds tight even through vibration. Our high pressure fittings are excellent for tubing assemblies and those times when connections need to be broken frequently.
Upchurch Super Flangeless Nuts and Fittings

Item Name | Product Image | Price |
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Upchurch Scientific Super Flangeless Ferrule for 3/16 inch OD Tubing, 5/16-24 Flat Bottom, Tefzel ETFE Green/SS, 100/pk - P-140CSuper Flangeless™ Ferrule for 3/16” OD Tubing, 5/16-24 Flat Bottom, Tefzel ETFE Green/Stainless Steel, 100 per pack Part Number: P-140C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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Upchurch Scientific Super Flangeless Ferrule for 3/16 inch OD Tubing, 5/16-24 Flat Bottom, Tefzel ETFE Green/SS, Single - P-140Super Flangeless™ Ferrule for 3/16” OD Tubing, 5/16-24 Flat Bottom, Tefzel ETFE Green/Stainless Steel, Single Part Number: P-140 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£4.39![]() |
Upchurch Scientific Super Flangeless Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16 inch OD Tubing, Natural, 10/Pk - M-650XSuper Flangeless™ Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16" OD Tubing, Natural - 10 per pack Product Number: M-650X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific... |
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£165.64![]() |
Upchurch Scientific Super Flangeless Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16 inch OD Tubing, Natural, 100/Pk - M-650CSuper Flangeless™ Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16" OD Tubing, Natural - 100 per pack Product Number: M-650C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific... |
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Upchurch Scientific Super Flangeless Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16 inch OD Tubing, Natural, Single - M-650Super Flangeless™ Ferrule, 6-32 or 6-40 Flat-Bottom, for 1/16" OD Tubing, Natural - Single Product Number: M-650 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific / IDEX... |
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£17.22![]() |
Upchurch Scientific Super Flangeless Ferrule, ETFE, Yellow - P-258-01Super Flangeless™ Ferrule, Yellow ETFE Product Number: P-258-01 Categories: Fluidics Fluidic Connections Fittings Flat-Bottom Fittings Super Flangeless™ Fittings Upchurch Scientific, IDEX Health & Science,... |
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£4.82![]() Min: 25 |
Upchurch Scientific Super Flangeless Fitting for 1/16 inch OD Tubing, 5/16-24 Flat Bottom, Standard Knurl, PEEK, Natural, 10/pk - P-141XSuper Flangeless™ Fitting for 1/16” OD Tubing, 5/16-24 Flat Bottom, Standard Knurl, PEEK, Natural, Single Part Number: P-141 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch... |
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£243.28![]() |
Upchurch Scientific Super Flangeless Fitting for 1/16 inch OD Tubing, 5/16-24 Flat Bottom, Standard Knurl, PEEK, Natural, Single - P-141Super Flangeless™ Fitting for 1/16” OD Tubing, 5/16-24 Flat Bottom, Standard Knurl, PEEK, Natural, Single Part Number: P-141 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch... |
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£25.96![]() Min: 25 |
Upchurch Scientific Super Flangeless Fitting for 2 mm OD Tubing, Short, M6 Flat-Bottom, PEEK, Black/Natural, Single - P-357-1Super Flangeless™ Fitting for 2 mm OD Tubing, Short, M6 Flat-Bottom, PEEK, Black/Natural, Single Part Number: P-357-1 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch Scientific / IDEX... |
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£4.71![]() Min: 25 |
Upchurch Scientific Super Flangeless Nut Fitting for 1/8 inch OD Tubing, Large Bore, 5/16-24 Flat-Bottom, Standard Knurl, PEEK, Natural, 10/PK - P-131XSuper Flangeless™ Nut for 1/8" OD Tubing, Large Bore, 5/16-24 Flat-Bottom, Standard Knurl, PEEK, Natural, 10 per pack Part Number: P-131X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These... |
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£51.62![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, 1/4 inch Hex, PEEK, Green, 10/pk - M-652XSuper Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, 1/4” Hex, PEEK, Green, Single Part Number: M-652X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific... |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, 1/4 inch Hex, PEEK, Green, 100/pk - M-652CSuper Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, 1/4” Hex, PEEK, Green, 100 per pack Part Number: M-652C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch... |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, 1/4 inch Hex, PEEK, Green, Single - M-652Super Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, 1/4” Hex, PEEK, Green, Single Part Number: M-652 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific /... |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, 10/pk - M-653XSuper Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, 10 per pack Part Number: M-653X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch... |
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£43.83![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, 100/pk - M-653CSuper Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, 100 per pack Part Number: M-653C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch... |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, Single - M-653Super Flangeless™ Nut for 1/16” OD Tubing, 10-32 Flat Bottom, Headless Knurl, PEEK, Green, Single Part Number: M-653 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch Scientific /... |
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£4.70![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, 10/PK - M-660XSuper Flangeless™ Nut for 1/16” OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, 10 per pack Part Number: M-660X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch... |
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£46.13![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, 100/pk - M-660CSuper Flangeless™ Nut for 1/16” OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, 100 per pack Part Number: M-660C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch... |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, Single - M-660Super Flangeless™ Nut for 1/16” OD Tubing, 6-32 Flat Bottom, Micro Headless, PEEK, Natural, Single Part Number: M-660 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This Upchurch Scientific /... |
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£4.70![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch OD Tubing, Long, 10-32 Flat Bottom, 1/4 inch Hex, PEEK, Green, 10/pk - M-655XSuper Flangeless™ Nut for 1/16" OD Tubing, Long, 10-32 Flat Bottom, 1/4” Hex, PEEK, Green, 10 per pack Part Number: M-655X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These Upchurch... |
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