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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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International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Hydraulic Fluid
Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them when you need frequent access to a line. All of the International Standard ISO Minimal-Spill quick-disconnect plugs are compatible with any of the International Standard ISO Minimal-Spill quick-disconnect sockets of the same coupling size, regardless of the pipe size. Couplings are compatible with ISO 16028 Parker FEM, ISO 16028 Perfecting HT, and ISO 16028 Snap-Tite 74 couplings. 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. They are zinc-plated steel, which has excellent strength and durability and fair corrosion resistance.
Plugs are also known as nipples.
Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
NPTF (Dryseal) 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.
- Maximum Pressure: See table
- Temperature Range: -20° to 212° F
- Compatible With: ISO 16028 Parker FEM, ISO 16028 Perfecting HT, ISO 16028 Snap-Tite 74
- Specifications Met: ISO 16028
Plugs | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Plug Tip | Optional Dust Caps | |||||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | Each | ||
Zinc-Plated Steel | ||||||||||
| 1 | 7/16" | 1 7/16" | 1 | NPTF | 16 | 2,900 psi @ 72° F | 0000000 | 0000000 | 0000000 | 00000 |
| 1/2 | 3/8" | 15/16" | 1/2 | NPTF | 08 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 1/4 | 1/4" | 5/8" | 1/4 | NPTF | 04 | 4,500 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/4 | 7/16" | 1 3/16" | 3/4 | NPTF | 12 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/8 | 3/16" | 3/4" | 3/8 | NPTF | 06 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/8 | 3/16" | 3/4" | 1/2 | NPTF | 08 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
- Maximum Pressure: See table
- Temperature Range: -20° to 212° F
- Compatible With: ISO 16028 Parker FEM, ISO 16028 Perfecting HT, ISO 16028 Snap-Tite 74
- Specifications Met: ISO 16028
Sockets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Plug Tip | Optional Dust Plugs | |||||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | Each | ||
Zinc-Plated Steel | ||||||||||
| 1 | 7/16" | 1 7/16" | 1 | NPTF | 16 | 2,900 psi @ 72° F | 0000000 | 0000000 | 0000000 | 00000 |
| 1/2 | 3/8" | 15/16" | 1/2 | NPTF | 08 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 1/4 | 1/4" | 5/8" | 1/4 | NPTF | 04 | 4,500 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/4 | 7/16" | 1 3/16" | 3/4 | NPTF | 12 | 3,600 psi @ 72° F | 0000000 | 000000 | 0000000 | 0000 |
| 3/8 | 3/16" | 3/4" | 3/8 | NPTF | 06 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/8 | 3/16" | 3/4" | 1/2 | NPTF | 08 | 3,600 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
High-Pressure Minimal-Spill Quick-Disconnect
Hose Couplings for Hydraulic Fluid
These couplings have the highest pressure rating of all the minimal-spill couplings we offer. Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them when you need frequent access to a line. All of the High-Pressure Minimal-Spill quick-disconnect plugs are compatible with any of the High-Pressure Minimal-Spill quick-disconnect sockets of the same coupling size, regardless of the pipe size. Couplings are compatible with Snap-Tite 71 couplings. 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 push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
Zinc-plated steel plugs and sockets have better strength and durability than 316 stainless steel plugs and sockets. They have fair corrosion resistance. 316 stainless steel plugs and sockets have 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.
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 1 | 11/32" | 1 3/4" | 1 | NPTF | 16 | 7,500 psi @ 72° F | 00000000 | 000000 |
| 1 | 11/32" | 1 3/4" | 1 1/4 | NPT | 20 | 7,500 psi @ 72° F | 00000000 | 00000 |
| 1/2 | 7/32" | 1 3/16" | 1/2 | NPTF | 08 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 1/4 | 3/16" | 3/4" | 1/4 | NPTF | 04 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 3/4 | 9/32" | 1 1/2" | 3/4 | NPTF | 12 | 7,500 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 3/8 | NPTF | 06 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 1/2 | NPTF | 08 | 10,000 psi @ 72° F | 00000000 | 00000 |
316 Stainless Steel | ||||||||
| 1 | 11/32" | 1 3/4" | 1 | NPSF | 16 | 4,000 psi @ 72° F | 00000000 | 000000 |
| 1/2 | 7/32" | 1 3/16" | 1/2 | NPSF | 08 | 5,000 psi @ 72° F | 00000000 | 00000 |
| 3/4 | 9/32" | 1 1/2" | 3/4 | NPSF | 12 | 5,000 psi @ 72° F | 00000000 | 000000 |
| 3/8 | 7/32" | 15/16" | 3/8 | NPSF | 06 | 5,000 psi @ 72° F | 00000000 | 00000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 1/2 | 7/32" | 1 3/16" | 3/4"-16 | UN/UNF (SAE) | 08 | 10,000 psi @ 72° F | 000000000 | 000000 |
| 1/4 | 3/16" | 3/4" | 7/16"-20 | UN/UNF (SAE) | 04 | 10,000 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 9/32" | 1 1/2" | 1/16"-12 | UN/UNF (SAE) | 12 | 7,500 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 9/16"-18 | UN/UNF (SAE) | 06 | 10,000 psi @ 72° F | 000000000 | 00000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
For Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 1 | 11/32" | 1 3/4" | 1 | NPTF | 16 | 7,500 psi @ 72° F | 00000000 | 0000000 |
| 1 | 11/32" | 1 3/4" | 1 1/4 | NPT | 20 | 7,500 psi @ 72° F | 00000000 | 000000 |
| 1/2 | 7/32" | 1 3/16" | 1/2 | NPTF | 08 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 1/4 | 3/16" | 3/4" | 1/4 | NPTF | 04 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 3/4 | 9/32" | 1 1/2" | 3/4 | NPTF | 12 | 7,500 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 3/8 | NPTF | 06 | 10,000 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 1/2 | NPTF | 08 | 10,000 psi @ 72° F | 000000000 | 00000 |
316 Stainless Steel | ||||||||
| 1 | 11/32" | 1 3/4" | 1 | NPSF | 16 | 4,000 psi @ 72° F | 00000000 | 000000 |
| 1/2 | 7/32" | 1 3/16" | 1/2 | NPSF | 08 | 5,000 psi @ 72° F | 00000000 | 000000 |
| 3/4 | 9/32" | 1 1/2" | 3/4 | NPSF | 12 | 5,000 psi @ 72° F | 00000000 | 000000 |
| 3/8 | 7/32" | 15/16" | 3/8 | NPSF | 06 | 5,000 psi @ 72° F | 00000000 | 000000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 200° F
- Compatible With: Snap-Tite 71
For Plug Tip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Thread Size | Thread Type | Dash Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 1/2 | 7/32" | 1 3/16" | 3/4"-16 | UN/UNF (SAE) | 08 | 10,000 psi @ 72° F | 000000000 | 000000 |
| 1/4 | 3/16" | 3/4" | 7/16"-20 | UN/UNF (SAE) | 04 | 10,000 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 9/32" | 1 1/2" | 1/16"-12 | UN/UNF (SAE) | 12 | 7,500 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 7/32" | 15/16" | 9/16"-18 | UN/UNF (SAE) | 06 | 10,000 psi @ 72° F | 000000000 | 00000 |