# Hydraulic Quick Connect Hose Coupling, Brass Body, Push-to-Connect Lock, 3/8"-18 Thread Size

**Manufacturer:** Eaton Hansen  
**MPN:** `B3K21`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Eaton Hansen |
| Manufacturer name | Eaton Hansen |
| Manufacturer | Eaton Hansen |
| CategoryId | 5403 |
| CategoryIdL1 | 32 |
| CategoryIdL2 | 32 |
| CategoryIdL3 | 10615 |
| CategoryIdL4 | 5403 |
| CategoryL1 | Power Transmission |
| CategoryL2 | Hydraulic Cylinders & Equipment |
| CategoryL3 | Hydraulic Hoses & Fittings |
| CategoryL4 | Hydraulic Quick Couplers |
| DimensionUnit | inch |
| GraingerSku | 55JT87 |
| Extra Product Name | Hydraulic Quick Connect Hose Coupling, Brass Body, Push-to-Connect Lock, 3/8"-18 Thread Size |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 0.15 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | MX |
| height | 1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2 |
| moq | 1 |
| MPN | B3K21 |
| multiple | 1 |
| qtyInStock | 41 |
| qtyInStockOverride | -2 |
| SKU | G0603767 |
| tierMinQty1 | 1 |
| tierPrice1 | 18.02 |
| url | https://www.zoro.com/eaton-hansen-hydraulic-quick-connect-hose-coupling-brass-body-push-to-connect-lock-38-18-thread-size-b3k21/i/G0603767/ |
| width | 1 |
| Coupler Thread Size | 3/8"-18 |
| Coupler Body Size | 3/8" |
| Thread Size | 3/8"-18 |
| Overall Length | 1 49/64 in |
| Length | 1-49/64" |
| Coupling Size | 3/8 in |
| Item | Hydraulic Quick Connect Hose Coupling |
| Coupler Interchange Type | ISO 7241-1 Series B |
| Connection Type | NPT |
| Coupler Flow Rate | 6.0 gpm |
| Max Pressure | 2200 psi |
| Coupler Body Material | Brass |
| Sleeve Material | Brass |
| Coupler Finish | Plain |
| Series | HK |
| Body Material | Brass |
| Coupling Locking Type | Push-to-Connect |
| Seal Material | Nitrile |
| Coupler Connection Type | FNPT |
| For Use With | HK Series Couplers |
| Locking Mechanism | Push and Pull |
| Bearing Material | Stainless Steel |
| Parker Interchange | BH3-61 |
| Seal Type | Ball and O-Ring |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0603767 | 18.02 | 1 | 41 | 1 |
| simsupply.com | ZO-G0603767 | 26.76 | 1 | 15 | 1 |
| Grainger | 55JT87 |  |  | None | 1 |
| Airline Hydraulics | EATON B3K21 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/105000000/105266000/part_--B3K21---EatonHansen--064b659f8c.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp