How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Tight-Seal Barbed Hose Fittings for Air and Water
Also known as ball-seat hose nipples, these fittings consist of a barbed shaft with a rounded end that sits inside a female threaded nut. When mated with a male threaded fitting, the rounded end presses tightly against the inside of the male threads for a better seal than a single-piece fitting. Once assembled, insert the barbed end into rubber hose and secure with a clamp or a crimp-on hose ferrule. The nut swivels until tightened for easy installation. Fittings are brass for good corrosion resistance.
NPSM (National Pipe Straight Mechanical) female threads are compatible with male NPT and NPTF (Dryseal) threads.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 250 psi @72° F
- Temperature Range: -40° to 160° F
- Attachment Type: Use Crimp-On Hose Ferrules, except For 1/2" to 3/4" Hose IDs: Use Band-and-Buckle Clamps
- Specifications Met: See table
| For Hose ID | Pipe Size | Thread Type | Specifications Met | Pkg. Qty. | Pkg. | |
Brass | ||||||
|---|---|---|---|---|---|---|
| 1/8" | 1/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 000000 |
| 3/16" | 1/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 3/16" | 1/4 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 1/4" | 1/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 1/4" | 1/4 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 1/4" | 3/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 5/16" | 1/4 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 5/16" | 3/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 3/8" | 1/4 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 3/8" | 3/8 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 00000 |
| 3/8" | 1/2 | NPSM | ASME B1.20.1, SAE J476 | 2 | 00000000 | 00000 |
| 1/2" | 3/8 | NPSM | ASME B1.20.1, SAE J476 | 2 | 00000000 | 00000 |
| 1/2" | 1/2 | NPSM | ASME B1.20.1, SAE J476 | 2 | 00000000 | 00000 |
| 3/4" | 3/4 | NPSM | ASME B1.20.1, SAE J476 | 2 | 00000000 | 00000 |