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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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Threaded Hose Fittings for Hydraulic Fluid
Fittings are threaded on both ends so you can connect them directly to a threaded hose or to pumps, cylinders, and other equipment in your hydraulic system.
Zinc-plated steel fittings are stronger and more durable than stainless steel fittings. They have fair corrosion resistance. Fittings that swivel until tightened rotate for easy installation.
Fittings with a 37° flared end are also known as JIC (Joint Industrial Council) fittings.
BSPP threads have a gasket or a 60° internal flare to protect against leaks.
Straight Adapters (Swivels Until Tightened), BSPP Female Hose × BSPP Male Hose
Straight Adapters (Swivels Until Tightened), BSPP Male Hose × UN/UNF (Tube End) Female 37° Flared Tube
- Maximum Pressure: See table
- Temperature Range: -20° to 230° F
- Specifications Met: SAE J514
Male Hose Connection | ||||||
|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | For Tube OD | Thread Size | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 04 | 1/4" | 7/16"-20 | 6,000 psi @ 72° F | 0000000 | 00000 |
| 1/4 | 04 | 3/8" | 9/16"-18 | 6,000 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 06 | 1/4" | 7/16"-20 | 5,500 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 06 | 3/8" | 9/16"-18 | 5,500 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 06 | 1/2" | 3/4"-16 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 08 | 3/8" | 9/16"-18 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 08 | 1/2" | 3/4"-16 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 08 | 3/4" | 1 1/16"-12 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 12 | 1/2" | 3/4"-16 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 12 | 3/4" | 1 1/16"-12 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 12 | 1" | 1 5/16"-12 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 1 | 16 | 3/4" | 1 1/16"-12 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 1 | 16 | 1" | 1 5/16"-12 | 3,000 psi @ 72° F | 0000000 | 00000 |
Straight Adapters, BSPP Male Hose × NPT Male Hose
Straight Connectors, BSPP Male Hose
Straight Reducers, BSPP Male Hose
Straight Reducing Adapters (Swivels Until Tightened), BSPP Female Hose × BSPP Male Hose
- Maximum Pressure: See table
- Temperature Range: -20° to 230° F
Pipe Size | Dash Size | |||||
|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 3/8 | 04 | 06 | 5,500 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 5,500 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 1/2 | 06 | 08 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 3/8 | 08 | 06 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 3/4 | 08 | 12 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 1 | 12 | 16 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 3,000 psi @ 72° F | 0000000 | 00000 |
Straight Reducing Adapters, BSPP Male Hose × NPT Male Hose
- Maximum Pressure: See table
- Temperature Range: -20° to 230° F
Pipe Size | Thread Type | Dash Size | ||||||
|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | (A) | (B) | Max. Pressure | Each | |
Zinc-Plated Steel | ||||||||
| 1/4 | 3/8 | BSPP | NPT | 04 | 06 | 5,500 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1/4 | BSPP | NPT | 06 | 04 | 5,500 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 1/2 | BSPP | NPT | 06 | 08 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 3/8 | BSPP | NPT | 08 | 06 | 4,500 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 3/4 | BSPP | NPT | 08 | 12 | 3,500 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 1/2 | BSPP | NPT | 12 | 08 | 3,500 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 1 | BSPP | NPT | 12 | 16 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 1 | 3/4 | BSPP | NPT | 16 | 12 | 3,000 psi @ 72° F | 0000000 | 00000 |
Caps (Swivels Until Tightened), BSPP Female Hose
