Industrial 2920-01-249-3492 Neutral Safety Switch

Description:

The Humvee M998 Transmission Neutral Safety Switch is used in military vehicle electrical systems to prevent engine starting unless the transmission is in the proper gear position. Commonly installed on AM General M998 HMMWV (Humvee) vehicles and related military platforms equipped with automatic transmissions. Maintenance personnel and military vehicle operators use this switch for drivetrain safety system repairs, transmission controls maintenance, and replacement of failed starting interlock components.

Applications:

The 12338434 / 5597263 Neutral Safety Switch is designed for HMMWV transmission systems where it monitors transmission position and permits starter engagement only when safe operating conditions are met. The switch helps prevent unintended vehicle movement during engine startup and provides critical input to the vehicle's starting and transmission control circuits. It is commonly used in military transport, tactical support, and utility vehicle applications.

Technical Specifications:

• Manufacturer Part Number (MPN): 12338434
• Alternate Part Number: 5597263
• NSN: 2920-01-249-3492
• Product Type: Transmission Neutral Safety Switch
• Vehicle Platform: AM General M998 HMMWV (Humvee)
• Function: Starter Interlock / Transmission Position Sensing
• Application: Military Vehicle Electrical Systems
• Mounting Location: Transmission Assembly
• Switch Type: Electromechanical Position Switch
• Electrical Output: Discrete ON/OFF Signal
• Compatible Equipment: M998 Series HMMWV Vehicles
• Industry: Military and Defense Vehicle Maintenance
• Operating Environment: On-Road and Off-Road Military Service
• Service Use: Replacement Safety and Starting System Component

Common Replacements:

• AM General 12338434 Neutral Safety Switch
• HMMWV NSN 2920-01-249-3492 Switch Assembly
• Military Surplus Transmission Safety Switch