Wing Nut Hydraulic Quick Coupling

Screw-together hydraulic quick coupling tightened by hand with a wing nut — vibration-resistant, non-valved, for agricultural and general implement lines. 1/4", 3/8", 1/2", 3/4", BSP female, BSP male, NPT female.
Key features
- Series: Wing Nut (screw-together)
- Interchange Standard: Wing nut screw-together — agricultural / trailer interchange
- Application Class: Farm Hydraulic
- Valving: Non-Valved
- Connection Method: Thread-to-Connect
- Maximum Operating Pressure: 250 bar
- Series
- Wing Nut (screw-together)
- Interchange Standard
- Wing nut screw-together — agricultural / trailer interchange
- Application Class
- Farm Hydraulic
- Valving
- Non-Valved
- Available Body Sizes
- 1/4", 3/8", 1/2", 3/4"
- Connection Method
- Thread-to-Connect
Product description
The Wing Nut Hydraulic Quick Coupling is a screw-together (wing nut) hydraulic quick coupling for agricultural and trailer service. Used where a push-to-connect latch works loose under vibration — implement lines, static machine connections and low-cycle service points.
Construction
- Series: Wing Nut (screw-together)
- Connection method: thread-to-connect, hand-tightened by the wing nut — no tools required
- Valving: non-valved (free flow when coupled; the line must be depressurised before disconnecting)
- Body material: carbon steel, zinc-plated
- Seals: NBR standard; Viton on request for high-temperature or aggressive fluids
- Available sizes: 1/4", 3/8", 1/2", 3/4"
- Port threads: BSP female, BSP male, NPT female
Performance
Rated to 250 bar working pressure with a 4:1 burst safety factor. Operating temperature -25°C to +100°C on NBR seals. The wing nut resists vibration loosening better than a push-to-connect ball latch, which is why it persists on trailer and implement lines.
How to order
Specify (a) the body size, (b) the port thread you need, (c) male half, female half, or matched pair, and (d) seal compound. Tell us the implement or trailer make on the RFQ if you are matching an existing coupling.
Companion products
For push-to-connect service see the Eaton 5600 (ISO 7241 Series A), FD45 (Series B) and FD89 flush-face ranges in the same category. For farm tractor tips see Eaton FD70 / FD76 (ISO 5675).
Identification
| Parameter | Value |
|---|---|
| Series | Wing Nut (screw-together) |
| Interchange Standard | Wing nut screw-together — agricultural / trailer interchange |
| Application Class | Farm Hydraulic |
| Valving | Non-Valved |
Variants
| Parameter | Value |
|---|---|
| Available Body Sizes | 1/4", 3/8", 1/2", 3/4" |
| Available Body Materials | Carbon steel, zinc-plated |
| Available Seal Materials | NBR (standard), Viton (on request) |
| Available Port Thread Types | BSP female, BSP male, NPT female |
| Available Coupling Halves | Male half, female half, or matched pair |
Construction
| Parameter | Value |
|---|---|
| Connection Method | Thread-to-Connect |
| Flush Face / No-Spill | no |
| Connect Under Pressure | no |
Performance
| Parameter | Value |
|---|---|
| Maximum Operating Pressure | 250 bar |
| Minimum Burst Pressure | 1000 bar |
| Operating Temperature Min | -25 °C |
| Operating Temperature Max | 100 °C |
Shipping & lead time
Engineers viewing this also looked at

Eaton FD70 / FD76 — ISO 5675 Farm Tractor Male Tip Coupler
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Eaton FD45 — ISO 7241/1 Series B Non-Valved Hydraulic Quick Coupler

