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MS51963 Set Screws

Sesco Industries is a nationwide supplier of aerospace parts, which includes MS51963 Set Screws. Read on to learn more about these set screws. For more information, please contact us today.

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Features of MS51963 Set Screws

The MS51963 series of set screws encompasses various screws specified by the U.S. military for aerospace and defense applications. These screws are designed to meet stringent standards for performance, reliability, and quality. Here are some of the more notable features of these MS51963 set screws.

  • Military Standards Compliance: Manufacturers producing MS51963 set screws must comply with military standards, ensuring consistent quality and performance.
  • Material and Finish: The MS51963 set screws are typically made from steel and may undergo processes like cadmium plating to enhance corrosion resistance.
  • Point Types: Common point types for MS51963 set screws include flat, cup, and dog points. Each of these point types serve specific purposes in mechanical applications.
  • Drive Types: MS51963 set screws often feature a hex socket drive, allowing for secure installation and removal using an Allen wrench.
  • Thread Specifications: The MS51963 set screws includes different thread sizes and lengths. For example, MS51963-8 is a 1/4"-28 set screw, while MS51963-9 is a 5/16"-24 set screw.

MS51963 Set Screws Applications

MS51963 set screws are specialized fasteners used in high-precision and high-reliability environments, particularly where military specifications (MIL-SPEC) are required. The applications of these MS51963 set screws are defined by their mechanical properties, secure holding power, and compliance with strict standards. Here are some of the common applications for these set screws.

Aerospace and Defense

  • Aircraft assemblies: Used to secure components, such as gear systems, shafts, and control surfaces.
  • Missile and satellite systems: For use in instances where vibration resistance and reliability are crucial.
  • Avionics equipment: Set screws will hold parts in compact, high-performance electronic devices.

Military Ground Vehicles

These set screws are used in engine compartments, weapon systems, and communication equipment. These are all applications where set screws must resist loosening from vibration and temperature changes.

Mechanical Assemblies

  • Couplings, collars, and pulleys: These set screws will prevent relative motion between rotating parts, such as locking a gear on a shaft.
  • Precision instruments: Great for use in optical and measurement tools where alignment is critical.

Electronics and Enclosures

These MS51963 set screws secure covers, panels, or internal components in sensitive electronic or electrical military-grade devices.

Testing Equipment

Use these set screws in calibration fixtures and mounting jigs, where they ensure components remain in fixed positions under stress.

Typical Aerospace Use Cases

Here are some typical use cases in the aerospace industry for these MS51963 set screws.

  • Used for securing rotor components, sensor housings, control systems, or instrumentation panels.
  • Ability to lock gears and pulleys to shafts in actuation mechanisms.
  • Retention of small, non-permanent assemblies in satellite and avionics hardware.

Ultimately, MS51963 set screws provide durability, precision, and compliance when used properly. Overall, this makes them the preferred choice in aerospace and defense industries where performance, safety, and regulatory adherence are critical.

Why Use MS51963 Over Commercial Set Screws?

Here are three reasons why some may use these MS51963 set screws over common commercial set screws.

  • MIL-SPEC assurance: They guarantee high standards in material, threading, and heat treatment.
  • Traceability and documentation: These set screws are required in defense and aerospace procurement.
  • Corrosion resistance: They are often plated or treated to survive harsh environments.

If you’re working in a regulated industry or require screws that meet military or aerospace standards, then MS51963 set screws are often a go-to specification.

Benefits of MS51963 Set Screws in Aerospace Applications

Using MS51963 set screws in aerospace applications offers several distinct advantages, primarily due to their adherence to military standards (MIL-SPEC) and their performance in demanding environments. Here's a breakdown of those benefits.

MIL-SPEC Compliance

These screws meet strict military standards, ensuring:

  • Uniformity in material composition.
  • Dimensional accuracy.
  • Rigorous quality control.
  • Confidence in interchangeability and sourcing for defense contracts.

High Reliability and Performance

These screws are designed to perform consistently under extreme conditions, such as high vibration, pressure, and temperature fluctuations. Ultimately, this makes them essential for mission-critical aerospace systems where failure is not an option.

Material Quality and Corrosion Resistance

These screws are manufactured from aerospace-grade steel or other high-strength materials. This means they are typically plated with cadmium or zinc for example, which provides for superior corrosion resistance. That feature is crucial in humid, salty, or chemically aggressive environments like aircraft landing gear bays and external fuselage components.

Excellent Vibration Resistance

These screws are often used with locking mechanisms, such as safety wire holes and thread-locking compounds. They securely fix components in place to prevent loosening during flight vibrations or aerodynamic stress.

Compact and Precise

MS51963 set screws are ideal for tight-tolerance assemblies where space and weight are at a premium. They provide precise adjustment or positioning without needing large or bulky fasteners.

Traceability and Certification

Lastly, the MS51963 set screws offer full documentation and part traceability that meet aerospace and defense procurement regulations. Overall, this reduces liability and ensures compliance with FAA, DoD, or NASA standards.