Moisture-Resistant Push-to-Connect Tube Fittings for Air and Water

These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. They have good corrosion resistance.
Nickel-plated brass fittings have better corrosion resistance than unfinished brass fittings.
Fittings with thread sealant offer extra protection against leaks.

- For Use With: Air, Water
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Release Ring | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Inlets | Pipe Size | Number of Outlets | For Tube OD | Tube Material | Color | Material | Color | Max. Pressure | Features | Choose a Pipe Connection Material | Each | |
NPT Threads | ||||||||||||
| 1 | 1/8 | 2 | 1/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K918 | 00000 | |
| 1 | 1/8 | 2 | 5/32" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K919 | 00000 | |
| 1 | 1/8 | 2 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K921 | 0000 | |
| 1 | 1/8 | 3 | 1/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K929 | 00000 | |
| 1 | 1/8 | 3 | 5/32" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K931 | 00000 | |
| 1 | 1/8 | 3 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K932 | 00000 | |
| 1 | 1/8 | 4 | 1/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K941 | 00000 | |
| 1 | 1/8 | 4 | 5/32" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K942 | 00000 | |
| 1 | 1/8 | 4 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K943 | 00000 | |
| 1 | 1/8 | 6 | 1/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K952 | 00000 | |
| 1 | 1/8 | 6 | 5/32" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K953 | 00000 | |
| 1 | 1/8 | 6 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K954 | 00000 | |
| 1 | 1/4 | 2 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K922 | 00000 | |
| 1 | 1/4 | 2 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K924 | 00000 | |
| 1 | 1/4 | 3 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K933 | 00000 | |
| 1 | 1/4 | 3 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K935 | 00000 | |
| 1 | 1/4 | 4 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K944 | 00000 | |
| 1 | 1/4 | 4 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K946 | 00000 | |
| 1 | 1/4 | 6 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K955 | 00000 | |
| 1 | 1/4 | 6 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K957 | 00000 | |
| 1 | 3/8 | 2 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K923 | 00000 | |
| 1 | 3/8 | 2 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K925 | 00000 | |
| 1 | 3/8 | 2 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K927 | 00000 | |
| 1 | 3/8 | 3 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K934 | 00000 | |
| 1 | 3/8 | 3 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K936 | 00000 | |
| 1 | 3/8 | 3 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K938 | 00000 | |
| 1 | 3/8 | 4 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K945 | 00000 | |
| 1 | 3/8 | 4 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K947 | 00000 | |
| 1 | 3/8 | 4 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K949 | 00000 | |
| 1 | 3/8 | 6 | 1/4" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K956 | 00000 | |
| 1 | 3/8 | 6 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K958 | 00000 | |
| 1 | 3/8 | 6 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K961 | 00000 | |
| 1 | 1/2 | 2 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K926 | 00000 | |
| 1 | 1/2 | 2 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K928 | 00000 | |
| 1 | 1/2 | 3 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K937 | 00000 | |
| 1 | 1/2 | 3 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K939 | 00000 | |
| 1 | 1/2 | 4 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K948 | 00000 | |
| 1 | 1/2 | 4 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K951 | 00000 | |
| 1 | 1/2 | 6 | 3/8" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K959 | 00000 | |
| 1 | 1/2 | 6 | 1/2" | Polybutylene Plastic | Gray | Plastic | Orange | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K962 | 00000 | |
BSPT Threads | ||||||||||||
| 1 | 1/8 | 4 | 4mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K963 | 0000 | |
| 1 | 1/8 | 4 | 6mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K964 | 0000 | |
| 1 | 1/8 | 4 | 8mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K966 | 0000 | |
| 1 | 1/4 | 4 | 6mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K965 | 0000 | |
| 1 | 1/4 | 4 | 8mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K967 | 00000 | |
| 1 | 1/4 | 4 | 10mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K969 | 00000 | |
| 1 | 1/4 | 4 | 12mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K972 | 00000 | |
| 1 | 3/8 | 4 | 8mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K968 | 0000 | |
| 1 | 3/8 | 4 | 10mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K971 | 00000 | |
| 1 | 3/8 | 4 | 12mm | Polybutylene Plastic | Gray | Plastic | Gray | 140 psi @ 72° F | Acrylic Thread Sealant | 5203K973 | 00000 | |
Rotating Joint Manifolds


- For Use With: Air
- Temperature Range: -30° to 150° F
- Maximum Pressure: 220 psi @ 72° F
- Maximum Vacuum: 28 in. of Hg @ 72° F
Supply air to two different rotating objects from a stationary supply. The connections are sealed with an O-ring to allow different pressures and/or vacuum to be supplied simultaneously through the outlets.
Rotating Threads | Stationary Threads | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Speed, rpm | Body Dia. | Lg. | Material | O-Ring Material | Each | |
Right-Hand Rotating Threads | ||||||||||||
| 1/8 | NPT | Female | 1/8 | NPT | Female | 100 | 2 7/16" | 3 1/16" | Steel | Buna-N Rubber | 9233K12 | 0000000 |

























