AME T102 Hardware (Part 1)

Question 1

What does S.A.E. stand for?

Answer 1

S.A.E. - Society for Automotive Engineers.

Question 2

What does A.A. stand for?

Answer 2

A.A. - Aluminum Association.

Question 3

What are the four main standards?

Answer 3

1) A.N. - Airforce Navy
2) M.S. - Military Standard
3) N.A.S. - National Aerospace Standards
4) S.I. - Standard Imperial

Question 4

What do these four abbreviations stand for?
A.N. 
M.S. 
N.A.S. 
S.I.

Answer 4

1) A.N. - Airforce Navy
2) M.S. - Military Standard
3) N.A.S. - National Aerospace Standards
4) S.I. - Standard Imperial

Question 5

Where will proper hardware for an aircraft be found?

Two Locations

Answer 5

1) The Illustrated Parts Manual (IPC)

2) Supplemental Type Certificate (STC)

Question 6

What does the abbreviation ISO stand for?

Answer 6

International Organization of Standardization.

Question 7

When measuring an AN Bolt you should measure to the nearest eighth backward / forward?

Answer 7

Backward.

Question 8

You should measure an AN Bolt to the what nearest increment?

Answer 8

An eighth.

Question 9

What is the hole in the bolt head meant for?

Answer 9

Lockwire

Question 10

What is a hole found in the threads meant for?

Answer 10

Cotterpins

Question 11

Part Number: AN5-H30A

What does the “H” mean?
How about the “A”?

Answer 11

An “H” means that there is a hole in the head.

An “A” means that there is an Absence of a hole in the threads.

Question 12

When looking at a bolt, you find a symbol of a triangle. What does this mean?

Answer 12

The bolt is close tolerance.

Question 13

An “X” is found on a bolt. What does this mean?

Answer 13

It is an AN bolt.

Question 14

Screws are sized using their…

Answer 14

Number

Question 15

Machine screws are non-structural hardware.

True or False

Answer 15

False. They may be either.

Question 16

How are structural screws marked as opposed to their non-structural cousins?

Answer 16

Structural screws will always be marked with an “X.”

Question 17

There are two types of non-structural screws - Type A and Type B. What is the difference?

Answer 17

Type A have a sharp, pointed end.

Type B are blunt.

Question 18

Part Numbers:

• MS241693
• MS241693C
• MS241693B
• MS241693D

What is the difference between the four part numbers above?

Answer 18

The first is Cadmium Plated.
Second, Corrosion resistant.
Third, Brass (DD)
Fourth, Aluminum (AA)

Question 19

How do you tell the difference between Zinc Plated hardware and Corrosion resistant steel just by looking at them?

Answer 19

Zinc is shinier than Steel.

Question 20

How would you convert a screw size to an AN bolt size?

Answer 20

Multiply the screw size by four.

Add 0.060.

Question 21

What is the main difference between coarse and fine thread?

Answer 21

Coarse thread has less suface area than fine thread does.

Question 22

Define Major Diameter.

Minor Diameter…

Answer 22

Major: Body drill size.
Minor: Same as the inside hole of a nut.

Question 23

What does the abbreviation NC stand for?

UNF?

Answer 23

NC - National Coarse

UNC - Unified National Fine

Question 24

Are AN bolts NC or UNC?

Answer 24

UNC - National Fine

Question 25

``` Classes of fit: 1 2 3 What is the meaning of each? 4 5 ```

Answer 25

``` 1 - Loose (A wing nut) 2 - Free (Screws) 3 - Medium (Bolts & maybe screws) 4 - Close (Will need a wrench) 5 - Tight (Only undone every twenty years) ```

Question 26

Explain CAR 527.607 Fasteners Law

Answer 26

Each removable bolt, screw, nut, pin, or fastener whose loss could jeopardize the safe operation of the rotorcraft ust incorporate two separate locking devices.

Question 27

Washers: - AN 960 - AN 960C - AN 960B - AN 960D What is the meaning of the last designation in each of the four part numbers?

Answer 27

1) Cadmium Plated 2) Corrosion Resistant 3) Brass 4) Aluminum

Question 28

Part Number: AN 960-416L | What is the meaning of the "L"?

Answer 28

The "L" means that the washer is light and half the thickness of the original washer without the "L" designation.

Question 29

What is the purpose of a Light Washer?

Answer 29

These washers are used for aligning the Cotterpin Hole with a Castellated Nut.

Question 30

How would you identify a washer?

Answer 30

By measuring the minor diameter.

Question 31

What is the minor diameter of a washer?

Answer 31

Minor diameter is the inner hole of a washer.