# Parker

**Manufacturer:** Parker  
**MPN:** `BST-2`

The Parker BST-2 is a high flow quick coupler with a straight-through interface and manual sleeve. It features a 1/4" body size and 1/4"-18 NPTF port end. Constructed of brass, this coupler is suitable for applications requiring a non-valve, manual connection.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Parker |
| Manufacturer name | Parker |
| Manufacturer | Parker |
| DimensionUnit | inch |
| GraingerSku | 31A954 |
| Extra Product Name | Parker |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 0.2 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 1.5 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 0.9 |
| moq | 1 |
| MPN | BST-2 |
| multiple | 1 |
| qtyInStock | 487 |
| qtyInStockOverride | -2 |
| SKU | G4671931 |
| tierMinQty1 | 1 |
| tierPrice1 | 15.41 |
| url | https://www.zoro.com/parker-hydraulic-quick-connect-hose-coupling-brass-body-sleeve-lock-14-18-thread-size-st-series-bst-2/i/G4671931/ |
| width | 0.9 |
| Item | Hydraulic Quick Connect Hose Coupling |
| Quick Coupler Type | Hydraulic Coupler Body |
| Coupler Interchange Type | ST |
| Connection Type | NPTF |
| Coupler Thread Size | 1/4"-18 |
| Coupler Body Size | 1/4" |
| Coupler Flow Rate | 6.0 gpm |
| Max Pressure | 5200 psi |
| Coupler Body Material | Brass |
| Sleeve Material | Brass |
| Coupler Finish | Plain |
| Series | ST |
| Body Material | Brass |
| Coupling Locking Type | Sleeve |
| Thread Size | 1/4"-18 |
| Operating Temp Range | -40 Degrees to 250 Degrees F |
| Includes | Sleeve Lock |
| Length | 1-35/64" |
| For Use With | Parker ST Series |
| Seal Material | Nitrile |
| Bearing Material | Stainless Steel |
| Locking Mechanism | Ball |
| Parker Interchange | BST-2 |
| Coupler Connection Type | FNPT |
| Overall Length | 1 35/64 in |
| Coupling Size | 1/4 in |
| Finish/Coating | Plain |
| Max Flow Rate | 22.71 lpm |
| Fitting Type | Female NPTF |
| Max Working Pressure @ 70 F | 5,200 psi |
| Includes Shut Off | No |
| Hose Fitting Gender | Female |
| Max Outside Dia | 15/16 in |
| Includes Valve | No |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4671931 | 15.41 | 1 | 487 | 1 |
| Grainger | 31A954 |  |  | None | 1 |
| FinditParts | 11014159 |  |  | None | 1 |
| NRI Industrial | B357061 | 44.66 | 1 | None | 1 |
| Raptor Supplies | AC4XUH | 24.0788925 | 1 | None | 1 |
| Amazon | B00YTEUMPG |  |  | None | 1 |
| Amazon | B01BY6TCHA | 13.08 | 1 | None | 1 |
| Misumi USA | BST-2 |  |  | None | 1 |
| simsupply.com | ZO-G4671931 | 21.89 | 1 | 57 | 1 |
| NRI Industrial | B357064 | 51.44 | 1 | None | 1 |
| MRO Stop | 644020196 | 12.36 | 1 | 23 | 1 |
| Airline Hydraulics | PARKER BST-2 | 16.32 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/255000000/255338500/part_--BST2---Parker--93fd760d1c.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp