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What is the term used to describe the various types of fasteners and miscellaneous small items used to manufacture and repair aircraft?
What is the term used to describe the various types of fasteners and miscellaneous small items used to manufacture and repair aircraft?
According to AC 20-62E, what is the rule for the substitution of fasteners installed by the manufacturer?
According to AC 20-62E, what is the rule for the substitution of fasteners installed by the manufacturer?
What does PMA stand for in the context of aircraft parts?
What does PMA stand for in the context of aircraft parts?
What aspect of fasteners in an aircraft has been considered by design engineers?
What aspect of fasteners in an aircraft has been considered by design engineers?
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What is the main difference between a bolt and a screw?
What is the main difference between a bolt and a screw?
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In the 1-inch diameter size, how many threads per inch do NF threads specify?
In the 1-inch diameter size, how many threads per inch do NF threads specify?
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Which classification of bolts denotes a close fit?
Which classification of bolts denotes a close fit?
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What is the material composition of National Aerospace Standard (NAS) bolts?
What is the material composition of National Aerospace Standard (NAS) bolts?
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What is the tensile strength of Military Standard (MS) bolts?
What is the tensile strength of Military Standard (MS) bolts?
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Which head styles do Airforce Navy Bolts (AN bolts) come in?
Which head styles do Airforce Navy Bolts (AN bolts) come in?
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What markings should a corrosion-resistant (stainless steel) bolt have on its head?
What markings should a corrosion-resistant (stainless steel) bolt have on its head?
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Which classification of threads specifies 12 threads/inch in the 1-inch diameter size?
Which classification of threads specifies 12 threads/inch in the 1-inch diameter size?
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Which type of bolt is almost always manufactured in the Class 3 medium fit?
Which type of bolt is almost always manufactured in the Class 3 medium fit?
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Which classification of bolts denotes a loose fit?
Which classification of bolts denotes a loose fit?
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What types of material composition are used for Aircraft bolts?
What types of material composition are used for Aircraft bolts?
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Aircraft hardware is the term used to describe the various types of fasteners and miscellaneous small items used to manufacture and repair ______.
Aircraft hardware is the term used to describe the various types of fasteners and miscellaneous small items used to manufacture and repair ______.
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QUALITY PARTS must be installed with ______.
QUALITY PARTS must be installed with ______.
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Fasteners are often used to assemble ______ parts and assemblies.
Fasteners are often used to assemble ______ parts and assemblies.
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Substitution of fasteners installed by the manufacturer may only be done with fasteners that have all of the same characteristics as the ______.
Substitution of fasteners installed by the manufacturer may only be done with fasteners that have all of the same characteristics as the ______.
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The main difference between a bolt and a ______ is that a typical screw can work on its own and a bolt requires a nut to secure it
The main difference between a bolt and a ______ is that a typical screw can work on its own and a bolt requires a nut to secure it
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Bolts are used where great strength is required and screws are used where strength is not the deciding factor. The threaded end of the bolt is blunt while the ______ may be blunted or pointed
Bolts are used where great strength is required and screws are used where strength is not the deciding factor. The threaded end of the bolt is blunt while the ______ may be blunted or pointed
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The threaded end of the bolt usually has a ______ screwed onto it to complete the assembly
The threaded end of the bolt usually has a ______ screwed onto it to complete the assembly
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For screw, the thread end may fit into a female receptacle or it may fit directly into the material being ______
For screw, the thread end may fit into a female receptacle or it may fit directly into the material being ______
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Bolts, STUDS AND ______
Bolts, STUDS AND ______
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Classification of Threads: NC (American National Coarse) NF (American National Fine) UNC (American Standard Unified Coarse) UNF (American Standard Unified Fine) Note: There is one difference between the American national series and the American standard unified series. In the 1-inch diameter size NF threads specify 14 threads/inch and UNF threads specify 12 ______/inch
Classification of Threads: NC (American National Coarse) NF (American National Fine) UNC (American Standard Unified Coarse) UNF (American Standard Unified Fine) Note: There is one difference between the American national series and the American standard unified series. In the 1-inch diameter size NF threads specify 14 threads/inch and UNF threads specify 12 ______/inch
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Classification of Bolts Class 1 – loose fit Class 2 – free fit Class 3 – medium fit Class 4 – close ______
Classification of Bolts Class 1 – loose fit Class 2 – free fit Class 3 – medium fit Class 4 – close ______
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Aircraft bolts are almost always manufactured in the Class 3, medium ______
Aircraft bolts are almost always manufactured in the Class 3, medium ______
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Aircraft bolts are fabricated from cadmium zinc plated corrosion resistant steel, un-plated corrosion resistant steel, or anodized aluminum ______
Aircraft bolts are fabricated from cadmium zinc plated corrosion resistant steel, un-plated corrosion resistant steel, or anodized aluminum ______
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AN bolts, NAS bolts, and MS bolts Aircraft ______
AN bolts, NAS bolts, and MS bolts Aircraft ______
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Tensile Strength – 125,000 psi AN ______
Tensile Strength – 125,000 psi AN ______
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National Aerospace Standard (NAS bolts) – (hex, internal wrenching, and ______ style)
National Aerospace Standard (NAS bolts) – (hex, internal wrenching, and ______ style)
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Study Notes
Aircraft Hardware
- Aircraft hardware refers to the various types of fasteners and miscellaneous small items used to manufacture and repair aircraft.
Fasteners and Bolts
- Substitution of fasteners installed by the manufacturer can only be done with fasteners that have all of the same characteristics as the original.
- The main difference between a bolt and a screw is that a typical screw can work on its own, while a bolt requires a nut to secure it.
- Bolts are used where great strength is required, and screws are used where strength is not the deciding factor.
- The threaded end of a bolt usually has a nut screwed onto it to complete the assembly.
Threads and Classification
- NC (American National Coarse) and UNC (American Standard Unified Coarse) are classifications of threads with a coarse pitch.
- NF (American National Fine) and UNF (American Standard Unified Fine) are classifications of threads with a fine pitch.
- In the 1-inch diameter size, NF threads specify 14 threads/inch, and UNF threads specify 12 threads/inch.
Classification of Bolts
- Class 1 bolts have a loose fit, Class 2 bolts have a free fit, Class 3 bolts have a medium fit, and Class 4 bolts have a close fit.
- Aircraft bolts are almost always manufactured in the Class 3, medium fit.
- Aircraft bolts are fabricated from cadmium zinc plated corrosion-resistant steel, un-plated corrosion-resistant steel, or anodized aluminum.
Types of Bolts
- AN bolts (Air Force Navy Bolts) come in hex, internal wrenching, and other head styles.
- NAS bolts (National Aerospace Standard) are made from corrosion-resistant steel and come in hex, internal wrenching, and other head styles.
- MS bolts (Military Standard) have a tensile strength of 125,000 psi.
Other
- PMA stands for Parts Manufacturer Approval in the context of aircraft parts.
- Corrosion-resistant (stainless steel) bolts have specific markings on their heads.
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Description
Test your knowledge of aircraft hardware with this quiz. Learn about various types of fasteners and miscellaneous small items used to manufacture and repair aircraft, including welding, riveting, brazing, and bolting. Understand the importance of installing quality parts in aircraft construction.
