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AN Fitting AN840-4 Brass
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|
Size No. Brass | Size No. Alum | Tube I.D. | Thread Size |
|---|---|---|---|
| 4 | 4D | 1/4 | 1/8 |
Overview
| AN840 HOSE NIPPLE, Pipe Thread |
 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Tech Data
Reviews
Works as designed.
These work great and are always better than for aerospace applications.
There were seams on each side of the threads, likely due to the fact that this fitting is produced by casting without post-cast machining or forming of the threads. I got it to form a seal using thread sealant.
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AN Fitting AN840-4 Brass
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
The AN840-4 has 1/8" NPT and a 1/4" nipple fitting. It can be used on a Facet pump with 1/8-27 pipe thread.
The "TUBE I.D." column is in reference to the rubber tube inside dimension to be used on that unit. These units have national pipe thread, which is a tapered thread, and not measured to identify the listed size, but if the hole has NPT threads, and is approx 1/2", then you most likely need a 1/4" NPT threaded unit. The AN840-6D is an aluminum fitting that has 1/4" NPT & would use a 3/8" I.D. rubber hose.
