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Description
The Jason Industrial part 12MOFS1212 (Series 1232-1212) is a JB12MOFS Male O-Ring Face Seal (ORFS) hydraulic coupling. It is a full-size, direct-match fitting engineered with a 3/4" hose inner diameter (ID) and a 3/4" nominal thread size (-12 dash size) for heavy-duty, leak-free fluid power connections. [1, 2, 3]
Product Specifications
- Part Number / MPN: 12MOFS1212
- Series / Factory Code: 1232-1212 (JB12MOFS Series)
- Hose Inner Diameter (ID): 3/4 inch (19.1 mm / -12 dash size)
- Thread / Coupling Dash Size: -12 (3/4" nominal Male O-Ring Face Seal)
- Thread Size Dimension: 1-3/16-12
- Overall Length ("A" Dimension): 2.81 inches (71.3 mm)
- Cut-Off Length ("B" Dimension): 1.26 inches (32.0 mm)
- Hex Size (H1): 1.26 inches (32.0 mm) [1, 2, 3, 4]
Key Features
- Zero-Leak Compression: Built with a precision flat-face mating surface that tightly compresses an elastomeric O-ring to form an air- and liquid-tight seal against high vibration and immense system pressure. [1]
- High Impulse Tolerance: Forged from high-tensile, zinc-plated machined steel to survive relentless hydraulic pulse cycling without showing signs of structural stress or deformation. [1]
- Versatile Fluid Compatibility: Designed to crimp cleanly onto standard industrial hoses, maintaining absolute security in heavy construction, agricultural machinery, and industrial plant hydraulic lines. [1]










