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ALT M-4012-21-2 Hobbs Pressure Switch Mfr Srewart Warner M-4012-21/2 P/n Alt. 269A4576

M-4012-21 Alt M-4012-21/2 Hobbs Pressure Switch P/n Alt. 269a4576 Mfr Srewart And Warner

( Brand: Alt ), ( Manufacturer Part Number: M-4012-21/2 ), ( Part Type: Pressure Switch ), ( Compatible Model: 269a4576 ), ( Country/region Of Manufacture: United States )

Review ALT M-4012-21/2 Hobbs Pressure Switch P/n Alt. Mfr Srewart And Warner

The Stewart Warner M-4012-21/2 Hobbs Pressure Switch with part number 269A4576 is a crucial component in maintaining the proper functioning of an aircraft's fuel system. This pressure switch is designed specifically for use in aviation applications and is manufactured by the renowned aerospace technology company, Stewart Warner.

The M-4012-21/2 Hobbs Pressure Switch is a pneumatic switch that monitors the fuel pressure in an aircraft's fuel system. Its primary function is to provide a reliable and accurate indication of fuel pressure to the aircraft's engine instruments, ensuring that the pilot has real-time information about the engine's fuel status during flight.

The switch is designed with a robust construction to withstand the rigors of aviation use. It features a brass body with a machined Borosilicate glass fuel gauge element, which provides excellent durability and resistance to fuel and temperature variations. The switch also includes a diaphragm assembly, which isolates the electrical contacts from the fuel system, ensuring safe and reliable operation.

The Hobbs Pressure Switch is designed to meet the stringent requirements of the FAA and other aviation regulatory agencies. It is approved for use in various aircraft models and has undergone rigorous testing to ensure its reliability and accuracy.

The switch operates on a simple principle. When the fuel pressure drops below the set point, the diaphragm assembly moves, actuating a switch that sends a signal to the aircraft's instruments. Conversely, when the fuel pressure rises above the set point, the diaphragm assembly returns to its normal position, de-energizing the switch.

The M-4012-21/2 Hobbs Pressure Switch is easy to install and maintain. It comes with clear instructions and mounting hardware, making it a straightforward addition to any aircraft's fuel system. Additionally, the switch has a replaceable element, allowing for easy maintenance and prolonging its service life.

In summary, the Stewart Warner M-4012-21/2 Hobbs Pressure Switch with part number 269A4576 is a vital component in an aircraft's fuel system. Its robust construction, reliable operation, and ease of installation make it an essential addition to any aviation application. With its proven track record of performance and durability, this pressure switch is a trusted choice for pilots and maintenance personnel alike.

The Stewart Warner M-4012-21/2 hobbs pressure switch with part number 269A4576 is a critical component in aviation systems that monitor engine oil pressure. Here are some pros and cons of buying this specific pressure switch:

Pros:

1. Reputation: Stewart Warner is a well-known and trusted brand in the aviation industry for producing high-quality instruments and sensors.

2. Functionality: This pressure switch is designed to monitor oil pressure in aircraft engines and trigger warning lights when the pressure falls below a safe level.

3. Reliability: The pressure switch is built to withstand the harsh conditions of aviation environments, ensuring continuous and accurate oil pressure monitoring.

4. Easy Installation: The switch is easy to install and replace, making it a convenient option for maintenance personnel.

5. Long Service Life: The pressure switch is designed to last for a long time, reducing the need for frequent replacements.

Cons:

1. Cost: Compared to some other brands or models, this pressure switch may be more expensive.

2. Availability: Due to its specific part number and application in aviation, this pressure switch may be harder to find in local aviation supply stores and may require ordering online.

3. Complexity: The installation and calibration of the pressure switch may require specialized knowledge and expertise, making it less suitable for DIY enthusiasts.

Conclusion:

The Stewart Warner M-4012-21/2 hobbs pressure switch with part number 269A4576 is a reliable and functional option for monitoring oil pressure in aircraft engines. Its reputation as a trusted brand and its ability to withstand harsh environments make it a worthwhile investment for aviation professionals. However, its cost and availability may be limiting factors for some buyers, and the installation process may require specialized expertise.

Recommendation:

If you are an aviation professional or a serious enthusiast with the necessary expertise, the Stewart Warner M-4012-21/2 hobbs pressure switch is an excellent choice for monitoring oil pressure in your aircraft engine. However, if cost or availability are concerns, it may be worth exploring alternative brands or models that offer similar functionality. Always ensure that you follow proper installation and calibration procedures to ensure the safety and reliability of your aircraft.

Details:

Hobbs Meter Pressure Switch P/N M-4012-21/2, Alt. P/N 269A4576, with hardware, 1/8 pipe threads, new old inventory.

part #: m4012212 prices

  • $6.74-$69.00

specifications aviationpar:

  • brand: Alt
  • mpn: M-4012-21/2
  • part type: Pressure Switch
  • compatible model: 269a4576
  • country/region of manufacture: United States

returns aviationpar:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Buyer

payments aviationpar:

  • wallet: Paypal
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  • credit card: Discover

shipping aviationpar:

  • transit: 5-12 Days
  • class: Standard
  • cost: $7.57
  • type: Calculated
  • service: USPS Ground Advantage
  • carrier: USPS

offer aviationpar:

  • availability: In Stock
  • started: March 12, 2025
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • best offers: True

general aviationpar:

  • condition: New other see details
  • Parts Accessories > Aviation Parts Accessories > Parts

seller aviationpar:

  • city: Willis, Texas
  • # reviews: 32
  • rating: 100.0%
part type: pressure switch, compatible model: 269a4576, country/region of manufacture: united states,
category: auto parts > aviation parts accessories > parts, sku: 12659950090099621,
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5 offers $6.74–$69.00 USD
  • New. Offer #1 priced at $29.29 + $0.00 shipping estimate = $29.29* total. FREE SHIPPING
  • For parts or not working. Offer #2 priced at $69.00 + $9.75 shipping estimate = $78.75* total. +$9.75 shipping
  • Neu. Offer #3 priced at $6.74 + $43.76 shipping estimate = $50.50* total. +$43.76 shipping
  • Used. Offer #4 priced at $56.00 + $15.00 shipping estimate = $71.00* total. +$15.00 shipping
  • Used. Offer #5 priced at $44.80 + $10.00 shipping estimate = $54.80* total. +$10.00 shipping

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