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.
More
Screw-On Hose Fittings for Air and Water
The female connector screws directly onto rubber hose without the need for a separate adapter. You’ll need a female connector (ferrule) and a male adapter (stem) with the same hose ID to make a connection. Screw the female connector onto hose, then thread the male adapter into the female connector. When assembled, the fitting compresses against the hose, forming a strong seal. Also known as reusable fittings, they can be unscrewed from the hose end and used on a new hose.
Brass fittings are softer than 303 stainless steel fittings, so they’re easier to thread together. They have good corrosion resistance. 303 stainless steel fittings have better corrosion resistance than brass fittings.
NPTF (Dryseal) threads are compatible with NPT threads. BSPP adapters come with a Buna-N gasket to form a tight seal. This gasket resists grease, hydraulic oil, motor oil, mild chemicals, and water.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 250 psi @ 72° F
- Temperature Range: -40° to 160° F
For Hose | ||||
|---|---|---|---|---|
| OD | ID | Pkg. Qty. | Pkg. | |
Brass | ||||
| 1/2" | 1/4" | 5 | 0000000 | 000000 |
| 9/16" | 1/4" | 5 | 0000000 | 00000 |
| 9/16" | 5/16" | 2 | 0000000 | 0000 |
| 5/8" | 1/4" | 5 | 0000000 | 00000 |
| 5/8" | 5/16" | 5 | 0000000 | 00000 |
| 5/8" | 3/8" | 5 | 0000000 | 00000 |
| 11/16" | 5/16" | 2 | 0000000 | 0000 |
| 11/16" | 3/8" | 5 | 0000000 | 00000 |
| 3/4" | 3/8" | 5 | 0000000 | 00000 |
| 7/8" | 1/2" | 2 | 0000000 | 00000 |
| 15/16" | 1/2" | 2 | 0000000 | 00000 |
| 1" | 1/2" | 2 | 0000000 | 00000 |
303 Stainless Steel  | ||||
| 1/2" | 1/4" | 1 | 0000000 | 00000 |
| 9/16" | 1/4" | 1 | 0000000 | 00000 |
| 5/8" | 3/8" | 1 | 0000000 | 00000 |
| 11/16" | 3/8" | 1 | 0000000 | 00000 |
| 3/4" | 3/8" | 1 | 0000000 | 00000 |
| 7/8" | 1/2" | 1 | 0000000 | 00000 |
| 15/16" | 1/2" | 1 | 0000000 | 00000 |
with
Gasket
- Maximum Pressure: 250 psi @ 72° F
- Temperature Range: -40° to 160° F
| For Hose ID | Pipe Size | Thread Type | Pkg. Qty. | Pkg. | |
Brass | |||||
|---|---|---|---|---|---|
| 1/4" | 1/8 | NPTF | 5 | 0000000 | 000000 |
| 1/4" | 1/4 | NPTF | 5 | 0000000 | 00000 |
| 1/4" | 1/4 | BSPP | 1 | 00000000 | 00000 |
| 1/4" | 1/4 | BSPT | 1 | 00000000 | 00000 |
| 1/4" | 3/8 | NPTF | 2 | 0000000 | 00000 |
| 5/16" | 1/4 | NPTF | 5 | 0000000 | 00000 |
| 5/16" | 3/8 | NPTF | 2 | 0000000 | 00000 |
| 3/8" | 1/4 | NPTF | 5 | 0000000 | 00000 |
| 3/8" | 1/4 | BSPP | 1 | 00000000 | 00000 |
| 3/8" | 1/4 | BSPT | 1 | 00000000 | 00000 |
| 3/8" | 3/8 | NPTF | 5 | 0000000 | 00000 |
| 3/8" | 1/2 | NPTF | 2 | 0000000 | 00000 |
| 1/2" | 1/4 | NPTF | 2 | 0000000 | 00000 |
| 1/2" | 3/8 | NPTF | 2 | 0000000 | 00000 |
| 1/2" | 1/2 | NPTF | 2 | 0000000 | 00000 |
| 1/2" | 1/2 | BSPT | 1 | 00000000 | 00000 |
303 Stainless Steel | |||||
| 1/4" | 1/8 | NPT | 1 | 0000000 | 00000 |
| 1/4" | 1/4 | NPT | 1 | 0000000 | 00000 |
| 3/8" | 1/4 | NPT | 1 | 0000000 | 00000 |
| 3/8" | 3/8 | NPT | 1 | 0000000 | 00000 |
| 1/2" | 3/8 | NPT | 1 | 0000000 | 00000 |
| 1/2" | 1/2 | NPT | 1 | 0000000 | 00000 |
Screw-On Hose Fittings for Hydraulic Fluid
With just a vise and a wrench, make or repair hose assemblies in the field. These fittings thread directly onto hydraulic hose, so you don't need to crimp. To install, separate the two pieces. Screw the hose end onto your hose first and then thread the two pieces of the fitting back together. These fittings compress against the hose to form a strong seal. Also known as reusable fittings, they can be unscrewed from your hose and used again.
Fittings with a female tube end swivel 360° until tightened for easy installation.
Fittings with a 37° flared end are also known as JIC (Joint Industrial Council) fittings.
Zinc-plated steel fittings are stronger and resist wear and tear better than 316 stainless steel fittings. The zinc plating resists rusting in wet environments.
316 stainless steel fittings resist corroding from harsh chemicals and water better than zinc-plated steel fittings.
Parker 51R series fittings are easier to install if you use a vice jaw liner (sold separately) to firmly hold the end of your hose in place while you screw on the fitting.
NPTF (Dryseal) threads are compatible with NPT threads.
Note: Fittings are only for use with hydraulic hose.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -40° to 212° F
- For Hose Manufacturer Series:
Parker 42 Series Fittings: Parker 422 SAE J517 100R1AT
Parker 30 Series Fittings: Parker 302 SAE J517 100R2AT
Parker 51R Series Fittings: Parker 510D and 518D J517 SAE 100R7
Fittings | Hose | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Hose | Per Ft. | Vice Jaw Liners | ||||||||||
| ID | OD | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | 1-99 | 100-Up | Each | |||
Zinc-Plated Steel—Parker 42 Series | ||||||||||||
| 1/4" | 9/16" | 1/4 | NPTF | 04 | 3,250 psi @ 72° F | 00000000 | 000000 | 00000000 | 00000 | 00000 | 000000 | 00 |
| 5/16" | 9/16" | 1/4 | NPTF | 05 | 3,100 psi @ 72° F | 00000000 | 00000 | 00000000 | 0000 | 0000 | 000000 | 00 |
| 3/8" | 11/16" | 3/8 | NPTF | 06 | 2,600 psi @ 72° F | 00000000 | 00000 | 00000000 | 0000 | 0000 | 000000 | 00 |
| 1/2" | 13/16" | 1/2 | NPTF | 08 | 2,200 psi @ 72° F | 00000000 | 00000 | 00000000 | 0000 | 0000 | 000000 | 00 |
| 3/4" | 1 1/8" | 3/4 | NPTF | 12 | 1,500 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 | 00000 | 000000 | 00 |
| 1" | 1 7/16" | 1 | NPTF | 16 | 1,250 psi @ 72° F | 00000000 | 000000 | 00000000 | 00000 | 00000 | 000000 | 00 |
Zinc-Plated Steel—Parker 30 Series | ||||||||||||
| 1/4" | 5/8" | 1/4 | NPTF | 04 | 5,800 psi @ 72° F | 00000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 3/8" | 3/4" | 3/8 | NPTF | 06 | 4,500 psi @ 72° F | 00000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 1/2" | 7/8" | 1/2 | NPTF | 08 | 4,000 psi @ 72° F | 00000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 3/4" | 1 3/16" | 3/4 | NPTF | 12 | 3,100 psi @ 72° F | 00000000 | 00000 | 0000000 | 00000 | 00000 | 000000 | 00 |
| 1" | 1 1/2" | 1 | NPTF | 16 | 2,400 psi @ 72° F | 00000000 | 000000 | 0000000 | 00000 | 00000 | 000000 | 00 |
Zinc-Plated Steel—Parker 51R Series | ||||||||||||
| 3/16" | 7/16" | 1/4 | NPT | 04 | 3,250 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 000000 |
| 1/4" | 1/2" | 1/4 | NPT | 04 | 3,000 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
| 3/8" | 5/8" | 3/8 | NPTF | 06 | 2,250 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
| 1/2" | 13/16" | 1/2 | NPTF | 08 | 2,250 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
316 Stainless Steel—Parker 30 Series | ||||||||||||
| 1/4" | 5/8" | 1/4 | NPTF | 04 | 5,800 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 3/8" | 3/4" | 3/8 | NPTF | 06 | 4,500 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 1/2" | 7/8" | 1/2 | NPTF | 08 | 4,000 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 | 0000 | 000000 | 00 |
| 3/4" | 1 3/16" | 3/4 | NPTF | 12 | 3,100 psi @ 72° F | 0000000 | 000000 | 0000000 | 00000 | 00000 | 000000 | 00 |
| 1" | 1 1/2" | 1 | NPTF | 16 | 2,400 psi @ 72° F | 0000000 | 000000 | 0000000 | 00000 | 00000 | 000000 | 00 |
- Maximum Pressure: See table
- Temperature Range: -40° to 212° F
- For Hose Manufacturer Series: Parker 510D and 518D J517 SAE 100R7
Fittings | Hose | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Hose | Per Ft. | Vice Jaw Liners | |||||||||||
| ID | OD | For Tube OD | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | 1-99 | 100-Up | Each | |||
Zinc-Plated Steel—Parker 51R Series | |||||||||||||
| 3/16" | 7/16" | 1/4" | 7/16"-20 | UN/UNF (JIC) | 04 | 3,250 psi @ 72° F | 000000000 | 000000 | 0000000 | 00000 | 00000 | 000000000 | 000000 |
| 1/4" | 1/2" | 1/4" | 7/16"-20 | UN/UNF (JIC) | 04 | 3,000 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
| 3/8" | 5/8" | 3/8" | 9/16"-18 | UN/UNF (JIC) | 06 | 2,250 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
| 1/2" | 13/16" | 1/2" | 3/4"-16 | UN/UNF (JIC) | 08 | 2,250 psi @ 72° F | 000000000 | 00000 | 0000000 | 0000 | 0000 | 000000000 | 00000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 212° F
- For Hose Manufacturer Series:
Parker 42 Series Fittings: Parker 422 SAE J517 100R1AT
Parker 30 Series Fittings: Parker 302 SAE J517 100R2AT
Parker 51R Series Fittings: Parker 510D and 518D J517 SAE 100R7 - Specifications Met: See table
Fittings | Hose | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Hose | Per Ft. | |||||||||||
| ID | OD | For Tube OD | Thread Size | Thread Type | Dash Size | Max. Pressure | Specifications Met | Each | 1-99 | 100-Up | ||
Zinc-Plated Steel—Parker 42 Series | ||||||||||||
| 1/4" | 9/16" | 1/4" | 7/16"-20 | UN/UNF (JIC) | 04 | 3,250 psi @ 72° F | SAE J516 | 00000000 | 000000 | 00000000 | 00000 | 00000 |
| 3/8" | 11/16" | 3/8" | 9/16"-18 | UN/UNF (JIC) | 06 | 2,600 psi @ 72° F | SAE J516 | 00000000 | 00000 | 00000000 | 0000 | 0000 |
| 1/2" | 13/16" | 1/2" | 3/4"-16 | UN/UNF (JIC) | 08 | 2,200 psi @ 72° F | SAE J516 | 00000000 | 00000 | 00000000 | 0000 | 0000 |
| 3/4" | 1 1/8" | 3/4" | 1 1/16"-12 | UN/UNF (JIC) | 12 | 1,500 psi @ 72° F | SAE J516 | 00000000 | 00000 | 00000000 | 00000 | 00000 |
| 1" | 1 7/16" | 1" | 1 5/16"-12 | UN/UNF (JIC) | 16 | 1,250 psi @ 72° F | SAE J516 | 00000000 | 000000 | 00000000 | 00000 | 00000 |
Zinc-Plated Steel—Parker 30 Series | ||||||||||||
| 3/4" | 1 3/16" | 3/4" | 1 1/16"-12 | UN/UNF (JIC) | 12 | 3,100 psi @ 72° F | SAE J516 | 00000000 | 00000 | 0000000 | 00000 | 00000 |
316 Stainless Steel—Parker 30 Series | ||||||||||||
| 1/4" | 5/8" | 1/4" | 7/16"-20 | UN/UNF (JIC) | 04 | 5,800 psi @ 72° F | SAE J514 | 0000000 | 00000 | 0000000 | 0000 | 0000 |
| 3/8" | 3/4" | 3/8" | 9/16"-18 | UN/UNF (JIC) | 06 | 4,500 psi @ 72° F | SAE J514 | 0000000 | 00000 | 0000000 | 0000 | 0000 |
| 1/2" | 7/8" | 1/2" | 3/4"-16 | UN/UNF (JIC) | 08 | 4,000 psi @ 72° F | SAE J514 | 0000000 | 00000 | 0000000 | 0000 | 0000 |
| 3/4" | 1 3/16" | 3/4" | 1 1/16"-12 | UN/UNF (JIC) | 12 | 3,100 psi @ 72° F | SAE J514 | 0000000 | 000000 | 0000000 | 00000 | 00000 |
| 1" | 1 1/2" | 1" | 1 5/16"-12 | UN/UNF (JIC) | 16 | 2,400 psi @ 72° F | SAE J514 | 0000000 | 000000 | 0000000 | 00000 | 00000 |
Screw-On Hose Fittings for D.O.T. Hose
Create or repair D.O.T. hose assemblies in the field with just a wrench and a vise, no crimper required. To install, separate the two pieces of these fittings. Screw the hose-end portion onto your hose, then thread the nipple portion into the hose-end portion. When assembled, these fittings compress against the hose to form a strong seal. Also known as reusable fittings, they can be unscrewed from your hose and used on a new one. All meet labeling and performance requirements for motor vehicle brake hose fittings.
Fittings with a flared tube connection swivel 360° until tightened for easy installation. Those with a 37° flared end are also known as JIC (Joint Industrial Council) fittings. Those with a 45° flared end are also known as SAE fittings.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -40° to 300° F
- Specifications Met: D.O.T. FMVSS 106, SAE J517 100R5
- For Hose Manufacturer Series: Parker 201 SAE J517 100R5
- Maximum Pressure: See table
- Temperature Range: -40° to 300° F
- Specifications Met: D.O.T. FMVSS 106, SAE J517 100R5
- For Hose Manufacturer Series: Parker 201 SAE J517 100R5
For Hose | ||||||||
|---|---|---|---|---|---|---|---|---|
| ID | OD | For Tube OD | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel—Parker 20 Series | ||||||||
| 3/16" | 1/2" | 1/4" | 7/16"-20 | UN/UNF (JIC) | 04 | 3,000 psi @ 72° F | 0000000 | 000000 |
| 5/16" | 11/16" | 3/8" | 9/16"-18 | UN/UNF (JIC) | 06 | 2,250 psi @ 72° F | 0000000 | 00000 |
| 13/32" | 3/4" | 1/2" | 3/4"-16 | UN/UNF (JIC) | 08 | 2,000 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 15/16" | 1/2" | 3/4"-16 | UN/UNF (JIC) | 08 | 1,750 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 15/16" | 5/8" | 7/8"-14 | UN/UNF (JIC) | 10 | 1,750 psi @ 72° F | 0000000 | 00000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 300° F
- Specifications Met: D.O.T. FMVSS 106, SAE J517 100R5
- For Hose Manufacturer Series: Parker 201 SAE J517 100R5
For Hose | ||||||||
|---|---|---|---|---|---|---|---|---|
| ID | OD | For Tube OD | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel—Parker 20 Series | ||||||||
| 3/16" | 1/2" | 1/4" | 7/16"-20 | UN/UNF (SAE 45°) | 04 | 3,000 psi @ 72° F | 0000000 | 000000 |
| 5/16" | 11/16" | 3/8" | 5/8"-18 | UN/UNF (SAE 45°) | 06 | 2,250 psi @ 72° F | 0000000 | 00000 |
| 13/32" | 3/4" | 1/2" | 3/4"-16 | UN/UNF (SAE 45°) | 08 | 2,000 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 15/16" | 5/8" | 7/8"-14 | UN/UNF (SAE 45°) | 10 | 1,750 psi @ 72° F | 0000000 | 00000 |