Description
The Pulse Tachometer DF6189 (NSN 6680-01-142-3180) is a MIL-spec tachometer designed to provide accurate engine speed measurement in military vehicles and other demanding industrial equipment. This military pulse tachometer functions as a reliable mechanical pulse tachometer, converting rotational movement into a pulse signal for use with compatible engine monitoring and control systems.
Built for harsh operating conditions, the DF6189 serves as a dependable vehicle tachometer sensor and military engine speed transmitter, delivering consistent performance in environments exposed to vibration, shock, fuel, oil, coolant, moisture, and extreme temperatures. Manufactured to strict military standards, this defense tachometer is engineered for long service life and dependable operation where accurate engine speed data is critical.
Features
- Environmentally sealed construction protects against moisture, dirt and harsh operating conditions.
- DF6189 configuration with a single female take-off connection and 0.225–0.250 inch drive tang
- Single female take-off connection (DF6189 configuration) for straightforward installation.
- Self-lubricating mechanism minimizes maintenance and extends service life.
- Removable drive tip simplifies servicing and replacement.
- Outputs two electrical pulses per revolution for accurate rotational speed measurement.
- Manufactured to ISO 9001:2015 standards with 100% final inspection and certification.
Applications
- Military vehicles
- Ground support equipment
- Aircraft systems
- Diesel engines
- Generator sets
- Marine propulsion systems
- Defense equipment
Technical Specifications
| Specification | Value |
|---|---|
| Product | Pulse Tachometer |
| Model | DF6189 |
| NSN | 6680-01-142-3180 |
| Mounting | Fixed |
| Output | Two pulses per revolution |
| Cable | 90° Sealed |
| Connector | Sure-Seal |
| Connection | Single female take-off |
| Drive Tip | Removable |
| Environmental Resistance | Suitable for exposure to oils, fuels and coolants |
| Quality Standard | ISO 9001:2015 |
| CAGE Code | 0TSK1 |
| ESI Part Number | Part Number | NSN | Range |
|---|---|---|---|
| DF6189 | 12258931-2 w/Tang drive 3014 | 6680-01-142-3180 | N/A |
Quality Assurance & Military Standards
Every DF6189 Pulse Tachometer is manufactured to ESI’s ISO 9001:2015 standards and in accordance with the applicable military drawings and workmanship requirements. Each unit undergoes a 100% final inspection before leaving our facility and is supplied with the relevant certification as standard.
Built for military and industrial applications, the DF6189 uses durable materials and a sealed design to provide dependable performance in harsh operating conditions.
FAQs
What is NSN 6680-01-142-3180?
NSN 6680-01-142-3180 identifies the DF6189 fixed-mount pulse tachometer used for measuring rotational speed in military equipment.
What does a pulse tachometer do?
A pulse tachometer converts rotational movement into electrical pulses that can be used by engine monitoring and control systems.
How many pulses per revolution does the DF6189 provide?
The DF6189 outputs two electrical pulses per revolution.
Is the tachometer environmentally sealed?
Yes. It features a sealed 90° cable and Sure-Seal connector designed for harsh operating environments.
