FF-S-200B Federal Specification

Nationwide Military Parts Supplier

The FF-S-200B is a federal specification that covers hexagon socket and spline socket headless setscrews. These setscrews are used in various applications, which include for use with a variety of military parts. When it comes to the size of set screws, they are classified by size based on the basic major diameter of the thread. The General Services Administration has authorized the use of this federal specification by all federal agencies. And all of the military parts we supply follow FF-S-200B.

Let's review some of the contents of these specifications.

Common Uses for FF-S-200B Setscrews

The FF-S-200B setscrews have different uses and applications due to their specific design and features. Here are some of those common uses:

  1. Aerospace and Automotive: FF-S-200B setscrews are used in aerospace and automotive applications, such as securing instrument panels, control knobs, and interior components.
  2. Machinery Assembly: The FF-S-200B setscrews are often employed in assembling machinery components. The headless design allows the setscrews to be flush with the surface, which reduces overall interference.
  3. Fastening Gears and Pulleys: In mechanical systems, the FF-S-200B setscrews secure gears, pulleys, and sprockets onto shafts. The hexagon or spline socket offers efficient torque transfer during installation process.
  4. Locking Components: When precise positioning is critical for an application, these setscrews are then used to lock all components in place. Common examples include securing bearings, collars, and couplings.
  5. Adjustment and Fine-Tuning: The headless design allows for fine adjustments without the protruding of parts and are commonly found in equipment where precise alignment is necessary.

In the end, the specific applications for FF-S-200B setscrews depends on factors like material compatibility, load requirements, and environmental conditions. Always refer to engineering specifications for precise usage guidelines.

Materials Used for FF-S-200B Setscrews

FF-S-200B setscrews are made from a few different specific materials in order to meet their functional requirements. Here are the common materials used for these setscrews:

  • Alloy Steel: Some setscrews are made from alloy steel in order to adhere to a few different specifications, including AISI 4032, 4037, 40L37, 4137, 4140, 41L40, 8630, and 8740. These alloys can be heat-treated according to SAE-AMS-H-6875 in order to achieve the desired hardness.
  • Corrosion-Resisting Steel: Some FF-S-200B setscrews are manufactured from corrosion-resistant steel. However, the specification does not define a particular grade.  Lastly, this type of steel ensures durability and resistance to environmental factors.

The choice of material depends on factors like load-bearing capacity, environmental conditions, and specific application requirements. 

Scope & Classification

Scope

The FF-S-200B federal specification specifies the requirements for headless setscrews with hexagon socket or spline socket heads.

Classification

Types

Set screws shall be of the following types, as specified:

  • Type 1: Hexagon socket, headless
  • Type 2: Spline socket, headless

Styles

  • Style 1 - Flat point
  • Style 2 - Cone point
  • Style 3 - Oval point
  • Style 4 - Cup point
  • Style 5 - Full-dog point
  • Style 6 - Half-dog point

Request A Quote for Our Military Parts

Sesco Industries has years of experience providing customers across the country with a wide range of high-quality aerospace and military parts, which includes set screws. Socket set screws are a very important part for many aerospace companies. In general, a set screw is a screw with a head for threading. There is a blind set screw, which is driven with an internal-wrenching drive. These drives include a hex socket, star, square socket, or slot. Then the set screw passes through a threaded hole in the outer object and is tightened against the inner object in order to prevent it from moving relative to the outer object. The end goal of using a socket set screw is to have superior security. The amount of energy and velocity in the aerospace industry means these screws need to be able to withstand great pressures. That is exactly what you get with our manufacturing of aerospace set screws. And since we are a manufacturer of socket set screws, we can customize the set screw to better match your needs. Reach out to us today and request a free quote.

Request a Quote!

When you reach out, we will gladly answer any questions or concerns you may have about our selection of aerospace and military parts. When you request a free quote, we can help you choose the right item for your tasks.