6.5.4 Rivets Flashcards
What are the two most common head styles of solid shank rivets in use in aircraft manufacture?
(What number is associated with them)
Universal head style = 470
Countersunk head style = 426
MS20 = Military standard
Also countersunk is to an angle of 100 degrees
How are rivets identified with regard to their material content?
They are identified by digits, letters and a marking on their head.
What is the common name for rivets, which have been heat treated and stored in a freezer to prevent age hardening?
Ice Box rivets
2017 and 2024
D and DD
Identify the aluminium alloy rivets from their head markings?
Raised cross
No markings
Raised circle
Double dash
Single dash
Raised cross = 5056 B
No markings = 1100 A
Raised circle = 7050 E
Double dash = 2024 DD
Single dash = Corrosion resistant steel
After heat treatment how is the natural hardening of the rivet prevented?
Storing the rivet in a dry ice box or freezer
What is the temper designation of a driven heat treated rivet?
T31
How many sizes is the “cherrymax” blind rivet available in?
What is the Cherrymax a suitable replacement for?
Why does the Cherrymax rivet have a driving anvil?
The Cherrymax Rivet is available in 6 diameters
The cherrymax rivet is a suitable replacment for solid shank rivets
The cherrymax rivet has a driving anvil to ensure a visible mechanical lock
What type of blind rivet uses a driving anvil during the installation process?
Cherrymax rivets
For what purposes can a rivnut be used?
For secondary structures like attaching brackets, trim materials and lightly loaded fittings
What is the advantage of using blind rivets as opposed to standard solid shank rivets?
What is the sizing difference in blind rivets/ friction lock rivets for solid shank rivets?
Friction lock/ blind rivets should be one size larger than solid shank rivets.
What important piece of information is engraved on the head of a blind rivet “cherry rivet”?
Grip, material and manufacturer’s identification
The bulbed cherrylock rivet is available in two head styles, what are they?
Countersunk and universal
What is the diameter of solid aircraft rivets measured in under the imperial system?
1/32 ‘’
Explain the aircraft rivet part number: MS 20470 AD 5-6?
MS20 = Military Standard
470 = Universal Head
AD = 2117 alloy material
5/32 ‘’ Diameter
6/16 ‘’ length
What is the head style of a MS 20470 AD 5-6 rivet?
(Explain the rest)
MS20 = Military standard
470 = Universal head style
AD = 2117 Alloy material
5/32 ‘’ diameter
6/16 ‘’ length
Identify the following components of rivet part:
MS20 426 AD 5 - 8
Identify the following components of rivet part:
AN 470 AD 4 - 5
