RS PRO Steel Female Hydraulic Quick Connect Coupling 3/8 in

  • RS stock no. 733-5659
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
Not Applicable
COO (Country of Origin): IT
Product Details

Carbon Steel High Pressure Screw Couplings

Connection via hand or tool under maximum working pressure
Withstands high static pressures
Maximum flow rate maintained should light unscrewing of the sleeve occur
Wide operating temperature range -25 → +125 °C
Nitrile seal material
Carbon steel body construction
Up to 1000 bar maximum working pressure

Screw Locking

Couplings manufactured to ISO standards and fitted with NBR (Nitrile) or VITON® seals, with secondary PTFE seals for backup purposes. Suitable for working environments within -25 to 100°C (+125°C for PVVM and VVS series), and -10 to +200°C for VITON-seal screw couplings.


  • Do not connect couplings under pressure.
Attribute Value
Series RS
Type Union
Coupling Gender Female
Locking Style Screw Lock
Thread NPT 3/8 Male
Material Steel
Seal Material Nitrile Rubber
Thread Size 3/8in
Thread Standard NPT
Thread Gender Male
Maximum Operating Pressure 700 bar
Maximum Operating Temperature +125°C
Minimum Operating Temperature -25°C
18 Available from UK/Europe in 4–6 working days (Covid-19 flight delays could impact quoted delivery times) for collection or delivery to major cities (Heavy, hazardous or lithium product excluded. Delivery T&C's apply)
Price (Excl VAT) Each
R 371.95
(exc. VAT)
R 427.74
(inc. VAT)
Per unit
1 - 5
R 371.95
6 - 11
R 364.51
12 +
R 353.57
Not Available for premium delivery