How to Identify and Measure Fittings
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Snap-Tite H-Shape Quick-Disconnect Hose Couplings for Hydraulic Fluid
A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a hydraulic hose line. All of the Snap-Tite H-shape quick-disconnect plugs are compatible with any of the Snap-Tite H-shape quick-disconnect sockets of the same coupling size, regardless of the pipe size. Also known as double shut-off couplings, the plugs and sockets both have a shut-off valve that stops the flow when the coupling is separated.
Plugs are also known as nipples.
Sockets are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.
Plugs and sockets with a barbed end insert into rubber hose and secure with a clamp.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Aluminum is lighter in weight than other metals and provides good corrosion resistance. 316 stainless steel has excellent corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads. NPSF (National Pipe Straight Fuel) threads are compatible with NPT threads.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.
Warning: Never attempt to connect or disconnect couplings when operating at maximum pressure. Stop the flow before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
Plugs, Male Threaded Pipe
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
3/4 Coupling Size
1 Coupling Size
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Specifications Met: MIL-C-51234
Plugs | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Plug Tip | Optional Dust Caps | ||||||||||
| Coupling Size | Lg. | Dia. | Pipe Size  | Thread Type | Dash Size | Max. Pressure | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPT | 02 | 6,500 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | 6,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | 4,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | 4,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | 3,500 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
Brass | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPT | 02 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | 2,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | 1,700 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
Aluminum | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
316 Stainless Steel | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | 5,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | 4,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | 3,750 psi @ 72° F | 0000000 | 000000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Plugs, Female Threaded Pipe
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
3/4 Coupling Size
1 Coupling Size
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Specifications Met: MIL-C-51234
Plugs | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Plug Tip | Optional Dust Caps | ||||||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPTF | 02 | 6,500 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | 6,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPTF | 06 | 4,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | 4,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPTF | 12 | 3,500 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPTF | 16 | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
Brass | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPTF | 02 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPTF | 06 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | 2,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPTF | 12 | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPTF | 16 | 1,700 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
Aluminum | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | 1,700 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
316 Stainless Steel | |||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPSF | 04 | 5,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPSF | 06 | 4,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPSF | 08 | 3,750 psi @ 72° F | 0000000 | 000000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPSF | 12 | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPSF | 16 | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Plugs, Barbed Male Hose
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 200° F
- Attachment Type: Use Worm-Drive Clamps
- Specifications Met: MIL-C-51234
Plugs | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Plug Tip | Optional Dust Caps | ||||||||
| Coupling Size | Lg. | Dia. | For Hose ID | Dash Size | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | |||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 3/8 | 9/32" | 1/2" | 3/8" | 06 | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2" | 08 | 0000000 | 000000 | __ | 000000 | 00 |
Brass | |||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8" | 06 | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2" | 08 | 0000000 | 00000 | __ | 000000 | 00 |
316 Stainless Steel | |||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | 0000000 | 00000 | 5 | 0000000 | 00000 |
Sleeve-Lock Sockets, Male Threaded Pipe
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
3/4 Coupling Size
1 Coupling Size
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Specifications Met: MIL-C-51234
Sockets | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Plug Tip | Optional Dust Plugs | |||||||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Sleeve Material | Max. Pressure | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPT | 02 | Zinc-Plated Steel | 6,500 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | Zinc-Plated Steel | 6,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | Zinc-Plated Steel | 4,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | Zinc-Plated Steel | 4,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | Zinc-Plated Steel | 3,500 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | Zinc-Plated Steel | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Brass | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPT | 02 | Brass | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | Brass | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | Brass | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | Brass | 2,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | Brass | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | Brass | 1,700 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Aluminum | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | Aluminum | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | Aluminum | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
316 Stainless Steel | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPT | 04 | Steel | 5,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPT | 06 | Steel | 4,000 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPT | 08 | Steel | 3,750 psi @ 72° F | 0000000 | 000000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPT | 12 | Steel | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPT | 16 | Steel | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Sleeve-Lock Sockets, Female Threaded Pipe
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
3/4 Coupling Size
1 Coupling Size
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Specifications Met: MIL-C-51234
Sockets | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Plug Tip | Optional Dust Plugs | |||||||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Sleeve Material | Max. Pressure | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/8 | NPTF | 02 | Zinc-Plated Steel | 6,500 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | Zinc-Plated Steel | 6,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPTF | 06 | Zinc-Plated Steel | 4,500 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | Zinc-Plated Steel | 4,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPTF | 12 | Zinc-Plated Steel | 3,500 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPTF | 16 | Zinc-Plated Steel | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
Brass | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | Brass | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPTF | 06 | Brass | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | Brass | 2,000 psi @ 72° F | 0000000 | 00000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPTF | 12 | Brass | 2,000 psi @ 72° F | 0000000 | 00000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPTF | 16 | Brass | 1,700 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Aluminum | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPTF | 04 | Aluminum | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPTF | 06 | Aluminum | 2,200 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPTF | 08 | Aluminum | 1,700 psi @ 72° F | 0000000 | 000000 | __ | 000000 | 00 |
316 Stainless Steel | ||||||||||||
| 1/4 | 1/4" | 7/16" | 1/4 | NPSF | 04 | Steel | 5,000 psi @ 72° F | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8 | NPSF | 06 | Steel | 4,000 psi @ 72° F | 0000000 | 000000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2 | NPSF | 08 | Steel | 3,750 psi @ 72° F | 0000000 | 000000 | __ | 000000 | 00 |
| 3/4 | 7/16" | 15/16" | 3/4 | NPSF | 12 | Steel | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
| 1 | 3/8" | 1 3/16" | 1 | NPSF | 16 | Steel | 2,000 psi @ 72° F | 0000000 | 000000 | 1 | 0000000 | 0000 |
Sleeve-Lock Sockets, Barbed Male Hose
1/4 Coupling Size
3/8 Coupling Size
1/2 Coupling Size
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 200° F
- Attachment Type: Use Worm-Drive Clamps
- Specifications Met: MIL-C-51234
Sockets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Plug Tip | Optional Dust Plugs | |||||||||
| Coupling Size | Lg. | Dia. | For Hose ID | Dash Size | Sleeve Material | Each | Pkg. Qty. | Pkg. | ||
Zinc-Plated Steel | ||||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | Zinc-Plated Steel | 0000000 | 000000 | 5 | 0000000 | 000000 |
| 3/8 | 9/32" | 1/2" | 3/8" | 06 | Zinc-Plated Steel | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2" | 08 | Zinc-Plated Steel | 0000000 | 000000 | __ | 000000 | 00 |
Brass | ||||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | Brass | 0000000 | 00000 | 5 | 0000000 | 00000 |
| 3/8 | 9/32" | 1/2" | 3/8" | 06 | Brass | 0000000 | 000000 | 5 | 0000000 | 00000 |
| 1/2 | 5/16" | 5/8" | 1/2" | 08 | Brass | 0000000 | 00000 | __ | 000000 | 00 |
316 Stainless Steel | ||||||||||
| 1/4 | 1/4" | 7/16" | 1/4" | 04 | Steel | 0000000 | 000000 | 5 | 0000000 | 00000 |