Fluid Lines and Fittings Vocab

Question 1

AC

Answer 1

Used on older aircraft, and does not have shoulder the AN fitting does

Question 2

AN

Answer 2

Used on more current aircraft, has shoulder and long sleeve than AC fitting

Question 3

Bead

Answer 3

Can be accomplished with power beader or hand beading tool

Question 4

Bonded Clamp

Answer 4

Have an electrical lead that is connected to the aircraft structure

Question 5

Bulkhead

Question 6

Chafing

Answer 6

(Of something reflective or tight), to become sore as a result of abrasive rubbing.

Question 7

Cold Flow

Answer 7

Any permanent deformation due to pressure or mechanical force

Question 8

Double Flare

Answer 8

Soft aluminum tubing with an outside diameter of 3/8 inch or smaller

Question 9

Fabricate

Answer 9

Select the proper size hose and end fitting. The inside diameter is the same as the inside diameter of the hose to which it is attached.

Question 10

Ferrule

Answer 10

Used to preset a flareless fitting lubricating a nut and a sleeve

Question 11

Flareless Fitting

Answer 11

Provides leak-free attachments without flares

Question 12

Flexible

Answer 12

Provides layers of reinforcement to original tubing

Question 13

Heel of a Bend

Answer 13

The outside of a bend.

Question 14

I.D.

Question 15

Kink

Answer 15

A sharp twist or curve in something that is otherwise straight.

Question 16

Lay Line

Answer 16

Shows whether or not a line has been twisted.

Question 17

MS

Answer 17

Military Standard, flareless fittings are designed primarily for high-pressure (3000 psi) hydraulic systems that may be subjected to severe vibration or fluctuating pressure.

Question 18

Nick

Answer 18

A small cut or notch

Question 19

O.D.

Answer 19

Outside Diameter

Question 20

PHDAN

Answer 20

Materials marked as oxygen nitrogen freon (carrying any harmful gases etc.)

Question 21

Preformed

Answer 21

Formed or shaped beforehand

Question 22

Radius

Answer 22

Equal to one half the diameter of a circle

Question 23

Rigid

Answer 23

Minor dents and scratches in tubing that may be repaired.

Question 24

Scratch

Answer 24

Score or mark the surface of something with a sharp or pointed object

Question 25

Single Flare

Answer 25

Formed with either an impact-type flaring tool or one having a flaring cone with a rolling action