3/8 in. x 3/8 in. Push-In x Male NPT Nickel-Plated Adapter
3/8 in. x 3/8 in. Push-In x Male NPT Nickel-Plated Adapter
Sizes in This Series
Nickel-plated brass push-in x Male NPT adapters. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 5/32 in. x 10-32 | 20049N | $6.99 | Add to cart |
| 1/4 in. x 1/8 in. | 20054NA | $4.30 | Add to cart |
| 3/8 in. x 3/8 in. (this page) | 20059N | $9.99 | — |
Overview
The Midland 20059N is a nickel-plated brass adapter connecting 3/8 in. push-in tubing to a 3/8 in. Male NPT port. The push-to-connect collet seals tubing without tools, and the nickel finish over forged brass adds corrosion resistance for damp and washdown environments.
Technical Specifications
| MPN | 20059N |
| Tube Size (Push-In) | 3/8 in. |
| Thread Size | 3/8 in. Male NPT |
| Connection Type | Push-to-Connect x Male NPT |
| Hex Size | 0.71 in. |
| Pressure Rating | 290 psi |
| Temperature Rating | -4°F to 176°F |
Materials of Construction
| Body | Nickel-Plated Brass |
| Collet / Grip Ring | Acetal with stainless gripping teeth |
| O-Ring Seal | Nitrile (NBR) |
Typical Applications
Used on larger compressed-air drops, pneumatic equipment, and instrumentation where the matched 3/8 in. tube and 3/8 in. NPT keep flow high. The nickel finish resists tarnish in humid and washdown areas.
Cross-Reference and Interchange
This nickel-plated push-in adapter cross-references to these competitor and industry part numbers: 12-425-0638, 1AAF1, 268PPNI-6C, 51495K194, 87000-06-06, W68PLP-6-6. Replacing one of these? Match nominal size, connections, and rating, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
- Push-to-Connect Fittings Selection Guide
- NPT Thread Tightening: Turns Past Hand-Tight
- Pipe Size Reference Chart
- Teflon Tape vs. Pipe Dope
Frequently Asked Questions
What tubing fits the push-in end?
3/8 in. (10 mm nominal) OD tubing pushes straight into the collet until seated.
Why both ends 3/8 in.?
The matched 3/8 in. tube and 3/8 in. NPT preserve full bore for higher-flow air and fluid runs.
How do I seal the NPT thread?
Apply PTFE tape or pipe dope and tighten one to two turns past hand-tight.
What is the working pressure?
290 psi within the -4°F to 176°F temperature range.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.