AN Fittings

AN Fittings

Call us to discuss all your plumbing requirements.  We keep a range of AN fittings for:

• Altimeters
• Air Speed Indicators (ASI)
• Vertical Speed Indicators (VSI)
• Air or Vacuum driven Artificial Horizons (A/H)
• Air or Vacuum driven Directional Gyros (D/G)
• Vacuum Gauges
• Fuel Lines
• Hydraulic Systems

We also carry Aeroquip and Imperial tubing in stock.

The following are common AN fittings used in many modern aircraft.

Picture	Part Number	Description
	AN806	Plug
	AN815	Union, Pipe - Pipe
	AN816	Union, Instrument - Pipe
	AN818	Nut
	AN819	Sleave
	AN821	Elbow, Pipe - Pipe (90 deg)
	AN822	Elbow, Instrument - Pipe (90 deg)
	AN823	Elbow, Instrument - Pipe (30 deg)
	AN824	Tee, Pipe X 3
	AN825	Tee, Inst - Pipe X 2
	AN826	Tee, Inst - Pipe X 2
	AN832	Bulkhead Straight Union
	AN833	Bulkhead Elbow Union
	AN840	Instrument - Push On Fitting
	AN910	Coupling, F - F
	AN919	Reducer (See below for sizes)
	AN924	Nut, for AN832 and AN833
	AN929	Blanking Cap

 

 

Add a dash (-) then the pipe size in 1/16 inch multiples (i.e. -4 = 1/4 inch, -6 = 3/8 inch).  
The letter 'D' after the size indicates Alloy, no 'D' indicates Steel.

 

 

 

 

 

AN819 Reducer Dash Number Guide
Dash Number	Pipe OD Sizes
0D	3/16-1/8
1D	1/4-1/8
2D	1/4-3/16
3D	5/16-1/4
4D	3/8-1/8
5D	3/8-3/16
6D	3/8-1/4
7D	3/8-5/16
8D	1/2-1/8
9D	1/2-3/16
10D	1/2-1/4
11D	1/2-5/16
12D	1/2-3/8

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