Flat-Bottom Fittings

Flat-Bottom Fittings

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Our Flat-Bottom Fittings couple convenience with performance, with options to effectively secure tubing of multiple outer diameters into traditional, flat-bottom receiving ports. Most of our Flat-Bottom Fittings feature the use of an external compression ferrule, which grips the outer wall of the flow path tubing while simultaneously creating a seal against the bottom surface of the receiving port. Most of the ferrules are manufactured from Tefzel™ (ETFE) for excellent compatibility. Numerous options exist, allowing the connection of tubing outer diameters ranging from capillary sizes through 5/16”.

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Select the right product for your needs. Filter by product category in the left-hand column. If you know the product specifications for your part, continue to narrow down your search results by selecting from the list of product attributes.

Part # Product Name
LP-200 1/4-28 Intuitive Nut 1/8
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LP-100 1/4-28 Intuitive Nut 1/16
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P-337X Super Flangeless™ Nut PEEK, Short, Headless, M6 Flat-Bottom for 1/8" OD - Black
M-644-03X Super Flangeless Nut 6-40 Flat-Bottom, 1/16" OD, Green, 10 Pack
M-644-03 Super Flangeless Nut 6-40 Flat-Bottom, 1/16" OD, Green
XU-662 Flangeless Fitting, PEEK, Black, 1/2-20 Flat-Bottom, for 5/16" OD
XU-655 Flangeless Fitting, PEEK, Black, 1/2-20 Flat-Bottom, for 1/4" OD Black - Single
XP-348 Flangeless Fitting Natural, Short, PEEK, 1/4-28 Flat-Bottom, for 1/8" OD
XP-345 Flangeless Fitting PFA, 1/4-28 Flat-Bottom, for 1/8" OD
XP-335X Flangeless Fitting Short, Natural, PEEK, 1/4-28 Flat-Bottom, for 1/8" OD Natural - 10 Pack
XP-335 Flangeless Fitting Short, Natural, PEEK, 1/4-28 Flat-Bottom, for 1/8" OD Natural - Single
XP-330 Flangeless Fitting Natural, PEEK, 1/4-28 Flat-Bottom, for 1/8" OD
XP-320 Flangeless Fitting Natural, Polypropylene,1/4-28 Flat-Bottom for 1/8" OD
XP-318 Flangeless Fitting Tefzel™ (ETFE), Short, 1/4-28 Flat-Bottom, for 1/8" OD
XP-315 Flangeless Fitting Tefzel™ (ETFE), Natural, 1/4-28 Flat-Bottom, for 1/8" OD
XP-305 Flangeless Fitting Delrin®, Green, 1/4-28 Flat-Bottom, for1/8" OD
XP-301 Flangeless Fitting Delrin®, Black 1/4-28 Flat-Bottom, for1/8" OD
XP-286 Flangeless Fitting Headless, PPS, Natural, 1/4-28 Flat-Bottom, for 1/16" OD
XP-283 Flangeless Fitting Headless, PEEK, Natural, 1/4-28 Flat-Bottom, for 1/16" OD
XP-245B Flangeless Fitting PFA 1/4-28 Flat-Bottom, for 1/16" OD Blue - Single
XP-238 Flangeless Fitting Delrin® 1/4-28 Flat-Bottom, for 1/16" OD Purple - Single
XP-235X Flangeless Fitting Short, PEEK, 1/4-28 Flat-Bottom for 1/16" OD Natural - 10 Pack
XP-235 Flangeless Fitting Short, PEEK, 1/4-28 Flat-Bottom for 1/16" OD Natural - Single
XP-230 Flangeless Fitting Natural, PEEK, 1/4-28 Flat-Bottom, for 1/16" OD
XP-208 Flangeless Fitting Black Delrin®, 1/4-28 Flat-Bottom, for1/16" OD
XP-202 Flangeless Fitting Delrin®, Red 1/4-28 Flat-Bottom, for1/16" OD
XP-201 Flangeless Fitting Delrin®, Black 1/4-28 Flat-Bottom, for1/16" OD
XP-137 Super Flangeless™ Fitting PEEK , 5/16-24 Flat-Bottom, for 3/16" OD Black - Single
XP-132 Flangeless Fitting PEEK 5/16-24 Flat-Bottom, for 4mm OD
XP-130 Flangeless Fitting PEEK 5/16-24 Flat-Bottom, for 1/8" OD
XLT-111 Flangeless Fitting PEEK 10-32 Flat-Bottom, for 1/16" OD
XF-368 Flangeless Fitting FlushNut™ 1/4-28 Flat-Bottom, 1/8" OD
XF-358 Flangeless Fitting FlushNut™ 1/4-28 Flat-Bottom, for 1/16" OD
P-987X Washer Stainless Steel M6 1/16" 10 Pack
P-982BLKX Flanged Fitting Knurl M6 1/16 Black - 10 Pack
P-948 VacuTight™ Fittings 1/4-28 - 1/8 PEEK
P-940 VacuTight Ferrule Tefzel™ (ETFE) 1/8"
P-938 VacuTight™ Fittings PEEK 1/4-28 - 1/16
P-932 VacuTight™ Fittings 1/4-28 - 1/16 Short Short Black - Single
P-930 VacuTight™ Fittings 1/4-28, 1/16"
P-844X VacuTight™ Fitting Headless for 1/16" OD Red - 10 Pack
P-844 VacuTight™ Fitting Headless for 1/16" OD Red
P-840 VacuTight™ Ferrule Tefzel™ (ETFE) 1/16 Red
P-582T Flanged Fitting Standard Knurl, for 1/8"" OD Tefzel (ETFE)
P-582B Flanged Fitting Standard Knurl, for 1/8"" OD Blue
P-501 Flanged Fitting w/Washer, Square, for 1/8" OD - Black
P-482T Flanged Fitting, Standard w/Washer, for 1/16" OD Tefzel (ETFE)
P-482BLK Flanged Fitting, Standard w/Washer, for 1/16" OD Black
P-482B Flanged Fitting, Standard w/Washer, for 1/16" OD Blue
P-420 Super Flangeless™ Female Nut PEEK Natural for 1/16

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