TinyTight™ fittings
Easy-to-use speciality fittings for Lee MINSTAC ports
The IDEX TinyTight™ Fittings are easy-to-use alternatives for Lee Company 062 MINSTAC fittings systems. These fittings consist of a two-piece TinyTight™ Ferrule which works with the Super Flangeless™ 6-40 threaded nut, M-644-03. Choose from two ferrule options, with 0.020” (0.50 mm) or 0.030” (0.75 mm) thru-holes. To use, simply slide a fitting head-first onto your tubing, followed by the ring and ferrule, and thread this assembly into the solenoid valve receiving port, while making sure the tubing is bottomed out.
No collets, colleting tools or chamfering tools are required; however, if needed for easier assembly of the TinyTight™ fittings, the M-150 swaging tool is available. To use, first place the tool in a vise, then tighten tubing, fitting and ferrule into the tool as you would into any port. Once removed, the swaged ferrule will be held in place on the tubing.
Note that the TinyTight™ fittings have pressure ratings that depends upon the tubing used for the connection. Note also that the older products M-640 and M-642 are obsolete and have been replaced by the fittings displayed here. MINSTAC is a registered trademark of The Lee Company.
Product details
| Part No.* | Description | Port | Pressure Rating | Head Style | Material |
|---|---|---|---|---|---|
| M-150 | Swaging Tool for TinyTight Fittings | 6-40 MINSTAC 062 | - | - | SST |
| M-644-03 | Super Flangeless Nut for 1/16” OD Tubing | 6-40 Flat-Bottom or MINSTAC 062 | 600–3,750 psi (41–259 bar) | Headless Knurl | PEEK Green |
| M-647 | TinyTight Ferrule for 1/16” OD Tubing, 0.020” Thru-Hole | 6-40 MINSTAC 062 | 600–3,750 psi (41–259 bar) | - | PEEK Natural/SST |
| M-657 | TinyTight Ferrule for 1/16” OD Tubing, 0.030” Thru-Hole | 6-40 MINSTAC 062 | 600–3,750 psi (41–259 bar) | - | PEEK Black/SST |
| Fittings for 6-40 MINSTAC port | Tubing | Pressure Rating* |
|---|---|---|
| M-644-03 with M-647 or M-657 | FEP, 1/16" OD, 0.010" ID | 600 psi (41 bar) |
| M-644-03 with M-647 or M-657 | PEEK, 1/16" OD, 0.010" ID | 1,500 psi (103 bar) |
| M-644-03 with M-647 or M-657 | Stainless-Steel, 1/16" OD, 0.010" ID | 3,750 psi (259 bar) |
| *Tests were conducted with room temperature water. Results may vary with the specific port and tubing materials, tubing ID, actual tubing OD, temperature, chemical compatibility, etc. | ||
Resources
Consult the Periodic Table of Analytical Fittings for a quick overview, the Fittings 101 for guidance and learning, and the IDEX Catalogue for product details, or contact Biotech Fluidics for expert advice.
