Hydraulic Union Adaptor, 5/8"MJ X 1/2"MJ

Hydraulic Union Adaptor, 5/8"MJ X 1/2"MJ

The 2403X1008 Hydraulic Union Adaptor is a straight hydraulic fitting designed to connect two different JIC hose sizes while maintaining a secure, leak-resistant connection. Featuring a 5/8" Male JIC (JIC 10) on one end and a 1/2" Male JIC (JIC 8) on the other, this adaptor allows hydraulic lines of different sizes to be joined without altering the system layout. Constructed from durable carbon steel and rated for working pressures up to 3,500 PSI, it delivers reliable performance in demanding hydraulic applications—because hydraulic systems appreciate fittings that hold tight and stay quiet under pressure.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 2403X1008
• Product Type: Hydraulic union adaptor
• Fitting Shape: Straight
• End 1 Type: Male JIC
• End 1 Size: JIC 10 (7/8"-14, 37° flare) — 5/8" hydraulic size
• End 2 Type: Male JIC
• End 2 Size: JIC 8 (3/4"-16, 37° flare) — 1/2" hydraulic size
• Material: Carbon steel
• Working Pressure: Up to 3,500 PSI
• Connection Type: JIC flare × JIC flare
• Seal Method: 37° metal-to-metal flare seal
• Function: Connects hydraulic hoses with different JIC sizes
• Applications: Hydraulic hose assemblies, agricultural equipment, heavy machinery, and industrial fluid power systems

Ideal For

• Connecting 5/8" JIC hoses to 1/2" JIC hoses
• Hydraulic system installation or repair
• Agricultural and heavy equipment hydraulic lines
• Industrial fluid power applications
• Anyone who knows that a simple straight adaptor can save a lot of time when two hydraulic hose sizes need to cooperate.