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Upchurch Flanged Nuts and Fittings

The Upchurch / IDEX Flanged Fittings are and excellent choice for making flanged tubing conntections. They are compatible with most standard 1/4-28 or M6 Flat-Bottom ports. The hard, inert Delrin® (acetal resin) nut has been optimized to resist cross threading or loosening during use, while the TEFZEL™ (ETFE) nuts work well in chemically aggressive environments. Our fittings for 1/16” or 1/8” OD tubing are supplied with a nut and a 316 stainless steel washer. There are multiple selections of head styles, materials, and colors to choose from.



Item Name Product Image Price

Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, 10/pk - P-401X

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin/Stainless Steel, Black, 10 per pack Product Number: P-401X Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, 10/pk - P-401X
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Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, 100/pk - P-401C

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin/Stainless Steel, Black, 100 per pack Product Number: P-401C Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, 100/pk - P-401C
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Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, Single - P-401

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin/Stainless Steel, Black, Single Product Number: P-401 Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/SS, Black, Single - P-401 £3.08Buy Now

Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/Stainless Steel, Green - P-405

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin/Stainless Steel, Green Part Number: P-405 Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections Flanged Fittings come in...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/Stainless Steel, Green - P-405
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Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/Stainless Steel, White, Single - P-403

Flanged Fitting for 1/16″ OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin/Stainless Steel, White - Single Part Number: P-403 Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections Flanged Fittings come in...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin/Stainless Steel, White, Single - P-403
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Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Blue - P-482B

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Blue  Product Number: P-482B Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Upchurch Scientific /...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Blue - P-482B £2.58Buy Now
Min:  25

Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Green - P-482G

Flanged Fitting for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Green Product Number: P-482G Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Upchurch Scientific / IDEX...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Green - P-482G
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Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, 10/pk - P-982BLKX

Flanged Fitting for 1/16" OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, 10 per pack Product Number: P-982BLKX Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch Scientific /...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, 10/pk - P-982BLKX £21.29Buy Now

Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Single - P-982BLK

Flanged Fitting for 1/16" OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Single Product Number: P-982BLK Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch Scientific / IDEX...
Upchurch Scientific Flanged Fitting for 1/16 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Single - P-982BLK
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Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Blue - P-582B

Flanged Fitting for 1/8" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Blue Product Number: P-582B Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch Scientific / IDEX...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Blue - P-582B £3.66Buy Now
Min:  25

Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, 100/Pk - P-582C

Flanged Fitting for 1/8" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, 100/Pk Part Number: P-582C Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections Flanged Fittings come in a variety of...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, 100/Pk - P-582C
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Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE/SS - P-582T

Flanged Fitting for 1/8" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel™ ETFE Resin/Stainless Steel Product Number: P-582T Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections These Upchurch...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE/SS - P-582T £3.90Buy Now
Min:  25

Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 10/pk - P-1082BLKX

Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Black, 10 per pack Product Number: P-1082BLKX Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Upchurch...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 10/pk - P-1082BLKX £20.13Buy Now

Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 100/pk - P-1082BLKC

Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Black, 100 per pack Product Number: P-1082BLKC Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Upchurch...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 100/pk - P-1082BLKC
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Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, Single - P-1082BLK

Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Black, Single Product Number: P-1082BLK Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Upchurch Scientific /...
Upchurch Scientific Flanged Fitting for 1/8 inch OD Tubing, M6 Flat-Bottom, Standard Knurl, Delrin/SS, Black, Single - P-1082BLK £2.17Buy Now

Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 100/Pk - P-482BLKC

Flanged Fitting with Washer for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Black, 100 per pack Product Number: P-482BLKC Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This...
Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Black, 100/Pk - P-482BLKC
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Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Black, Single - P-482BLK

Flanged Fitting with Washer for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/Stainless Steel, Black, Single Product Number: P-482BLK Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This...
Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Delrin/SS, Black, Single - P-482BLK £3.08Buy Now

Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE Resin/SS, Single - P-482T

Flanged Fitting with Washer for for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel™ ETFE Resin/Stainless Steel, Single Product Number: P-482T Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic...
Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE Resin/SS, Single - P-482T £2.22Buy Now

Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE/SS, 100/pk - P-482TC

Flanged Fitting with Washer for for 1/16" OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel™ ETFE Resin/Stainless Steel, 100 per pack Product Number: P-482TC Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic...
Upchurch Scientific Flanged Fitting with Washer for 1/16 inch OD Tubing, 1/4-28 Flat-Bottom, Standard Knurl, Tefzel ETFE/SS, 100/pk - P-482TC
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Upchurch Scientific Flanged Fitting with Washer for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin, Cream - P-504

Flanged Fitting with Washer for 1/8″ OD Tubing, 1/4-28 Flat-Bottom, 5/16" Square, Delrin, Cream Part Number: P-504 Categories: Fittings, Flanged Fittings, Flat-Bottom Fittings, Fluidic Connections This Flanged Fitting is made from...
Upchurch Scientific Flanged Fitting with Washer for 1/8 inch OD Tubing, 1/4-28 Flat-Bottom, 5/16 inch Square, Delrin, Cream - P-504
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Min:  25