Hydraulic Fitting, 3/4"X3/4" Male O-Ring Boss

The 12G-12MB Hydraulic Fitting is a MegaCrimp® hose coupling with a 3/4" male O-ring boss (ORB) connection, designed to deliver a secure, leak-resistant seal when properly crimped to compatible hydraulic hose. Built with the patented MegaCrimp® internal “C” insert, it accommodates different hose constructions and wall thicknesses while distributing crimp forces evenly to form a concentric seal, helping simplify inventory by allowing one coupling size to fit multiple hose ODs.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 12G-12MB
• Product Type: Hydraulic MegaCrimp® coupling
• Connection Type: Male O-Ring Boss (ORB)
• Fitting Nominal Size: 3/4 in
• Hose ID (Hose ID 1): 3/4 in
• Thread Size: 1-1/16"-12
• Thread Pitch: 12
• Overall Length: 3.33 in
• Stem Hex Size: 1-1/4 in
• Cutoff Length: 1.32 in
• Seal/Crimp Design: Patented MegaCrimp® with “C” insert for broad hose compatibility and even crimp force distribution

Ideal For

• Building or repairing hydraulic hoses needing a 3/4" male ORB fitting
• Applications where a leak-resistant ORB connection is preferred
• Shops using MegaCrimp® systems to reduce fitting inventory complexity
• Hydraulic assemblies requiring a consistent concentric crimp seal across varied hose constructions