|Thread Size||Part Number|
|COUPLING, Pipe Thread|
As expected 👍
The web site indicates that a -2D has 1/4 inch NPT threads. My invoice says I got a -2D, the package says -2D, but the coupler did not have 1/4 threads, more like 1/2 inch threads.
The AN910 couplings that I received had VERY tight threads. It is as if the aluminum were machined to the specs, then the anodizing was done, shrinking the opening dimensions. The other NPT parts could only be threaded in about 1 turn before becoming tight. They should thread at least 4-5 turns before becoming tight. These particular parts might be unusable, unlike Aircraft Spruces usual high standards.
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.
Yes, the aluminum is blue anodized.