FSC 5310 - Nuts and Washers: The Key to Securing Countless Assemblies
When it comes to the procural of various hardware and fasteners, the Federal Supply Classification system and the range of Federal Supply Classes (FSCs) it contains prove essential for many industries. This is because of the ease it provides for identifying and managing various parts, FSCs serving to group items together based on shared applications or qualities. In this blog, we will provide readers a brief introduction to Federal Supply Class 5310 - Nuts and Washers, covering topics ranging from common types to important procurement considerations.
What are Nuts and Washers?
Nuts and washers are commonplace in many assemblies, where they are used in unison to create highly secure and dependable joints. While nuts typically come in the form of internally threaded fasteners that pair with bolts or studs to hold pieces together, washers are placed between the two to distribute loads, prevent surface damage, and provide other various benefits. To accommodate the diverse needs of assemblies, various nut and washer designs have come about over the years.
Common Types of Nuts
Hex Nuts
Hex nuts are the most common type across applications, featuring a distinct, hexagonal shape that allows for ease of tightening and loosening with a wrench.
Lock Nuts
Lock nuts are designed to prevent the loosening of joints as a result of vibration, generally featuring a locking mechanism like a nylon insert or deformed threads.
Castle Nuts
Castle nuts have slots cut into one end, allowing for the insertion of a cotter pin for preventing loosening.
Wing Nuts
Wing nuts feature physical wing-like surfaces that allow the fastener to be tightened by hand, allowing for ease of adjustments.
Acorn Nuts
Acorn nuts have a domed shape that covers their threads, offering aesthetic benefits while safeguarding the fastener.
Common Types of Washers
Flat Washers
Flat washers are the most common type of washer available, capable of distributing loads and protecting surfaces.
Lock Washers
Like lock nuts, lock washers are designed to prevent the loosening of fasteners due to vibration. To do this, they often are designed with teeth or other features that grip the nut and any joined material.
Spring Washers
Spring washers provide a spring force that helps to keep an installed nut tight with tension.
Fender Washers
Fender washers have a larger diameter than standard washers, capable of distributing loads over a larger area to benefit soft materials and other needs.
Popular Applications of Nuts and Washers
Nuts and washers are used in a wide range of settings, where their versatility makes them indispensable across industries. Understanding the popular applications of nuts and washers is essential for effective use, with common examples provided below.
Automotive
Nuts and washers are used in automotive applications to secure engine components, suspension systems, and body panels, where they offer a strong and reliable connection to promote vehicle safety and performance.
Aerospace
Nuts and washers are used in aerospace applications to assemble aircraft structures and engine components. With the rigorous regulations of the industry, these fasteners must meet stringent quality and safety standards.
Construction
Nuts and washers are used in construction to fasten structural members and equipment, contributing to the structural integrity of buildings, bridges, and other forms of infrastructure.
Manufacturing
Nuts and washers are used in manufacturing within various types of machinery and equipment, streamlining the assembly and maintenance of various products.
The Importance of Material Selection for Nuts and Washers
The material selection for nuts and washers is a critical step of the procurement process, as such features directly affect the capabilities and characteristics of fasteners. Different materials offer varying levels of strength, corrosion resistance, and temperature tolerance, so determining which options are best for your application will ensure long-term reliability.
Steel
Steel is a common material for nuts and washers, where its balance of strength and corrosion resistance comes at a fair cost to benefit a range of uses.
Stainless Steel
Stainless steel offers excellent corrosion resistance, driving its popularity in applications where exposure to moisture or chemicals is a concern.
Aluminum
Aluminum provides a strength-to-weight ratio that is highly advantageous for weight-constricted applications like aerospace and aviation design.
Brass
Brass is corrosion resistant and electrically conductive, making it beneficial for electrical and plumbing applications.
Buy Aviation Parts: Your Partner in Aviation Parts Procurement
Buy Aviation Parts is a premier purchasing platform for nuts and washers that belong to FSC 5310, our selection being sourced from leading manufacturers and offered with the benefit of competitive pricing. Take the time to browse our curated Federal Supply Class catalogs as you see fit, where everything is ready for purchase at any time. Once you are ready to begin, fill out and submit a Request for Quote (RFQ) form through our website and a member of our staff will be in touch soon!
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