PPS Hex-Head Flangeless Nuts – 1/4''-28 (Pack of 10)
Part Number #JR-55073-10
An economically priced alternative to PEEK, this series of PPS ¼-28 nuts offers three low-pressure sealing options: inverted ferrule, flanged with washer, or VICI Jour’s patented collapsible ferrule.
These nuts provide excellent chemical and pressure resistance for 1/16” or ⅛” tubing (and 1/32” with inverted ferrule). They are fingertight when used with our Color-Sleeve adapters.
TECH TIPS
Color-Sleeve adapters turn PPS nuts into fingertight fittings and color-code different solvent lines for easy identification.
A PPS nut may also be used with a PEEK ferrule and stainless-steel bushing for high-pressure applications.
CHEMICAL RESISTANCE OF PPS
A = suitable
B = marginal
C = not recommended
| Chemical class | Resistance |
|---|---|
|
Acids, organic |
A |
| Acids, inorganic | B / C* |
| Aldehydes | A |
| Alcohols | A |
| Bases | B |
| Esters | A |
| Halogenated org. | A/B |
| Hydrocarbons | A |
| Ketones | A |
* Not recommended for use with concentrated halogen acids
For more detailed chemical resistance information, refer to Chemical Resistance of PEEK and other Polymers
Specs
For 1/16” or ⅛” OD tubing, and for 1/32” OD tubing with inverted ferrule
Material: PPS (Polyphenylene sulfide)
Threads: 1/4-28 threads
Pressure Rating: (varies with tubing material and ID)
| OD | Bar | Psi |
|---|---|---|
| 1/16" | 105 | 1500 |
| 1/8" | 35 | 500 |
More Info
Chemical Resistance of PEEK and Other Polymers
See Also