Hydraulic Adaptor, 1/4"MP X 5/16"FJX

Hydraulic Adaptor, 1/4"MP X 5/16"FJX

The 6505X0405 Hydraulic Adaptor is a straight hydraulic fitting designed to connect NPT pipe threads to JIC flare fittings in hydraulic systems. Featuring a 1/4" male NPT connection on one end and a 5/16" female JIC swivel on the other, this adaptor allows pipe-threaded components to interface with JIC hose connections while maintaining a secure, leak-resistant seal. Constructed from durable carbon steel and rated for working pressures up to 4000 PSI, it provides reliable performance in demanding hydraulic applications—because getting the right threads to cooperate often makes the whole hydraulic system happier.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: 6505X0405
• Product Type: Hydraulic adaptor
• Fitting Shape: Straight
• End 1 Connection: Male NPT
• End 1 Size: 1/4" NPT (1/4"-18 tapered thread)
• End 2 Connection: Female JIC swivel
• End 2 Size: JIC 5 (1/2"-20, 37° flare)
• Configuration: 1/4" MP × 5/16" FJX
• Working Pressure: Up to 4000 PSI
• Material: Carbon steel
• Seal Type: 37° flare metal-to-metal sealing
• Function: Adapts pipe thread connections to JIC hydraulic hose fittings

Ideal For

• Hydraulic systems requiring NPT-to-JIC conversion
• Connecting 1/4" pipe thread components to JIC hose assemblies
• Agricultural, industrial, and construction equipment
• Hydraulic hose and fitting installations
• Mechanics who know that the right adaptor can turn a pile of mismatched fittings into a working hydraulic system