Magazine Article

AN Fitting Reconditioning Tool

TBMG-10875

09/01/2011

Abstract
Content

A tool was developed to repair or replace AN fittings on the shuttle external tank (ET). (The AN thread is a type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid. It is a U.S. military-derived specification agreed upon by the Army and Navy, hence AN.) The tool is used on a drill and is guided by a pilot shaft that follows the inside bore. The cutting edge of the tool is a standard-size replaceable insert. In the typical Post Launch Maintenance/Repair process for the AN fittings, the six fittings are removed from the ET’s GUCP (ground umbilical carrier plate) for reconditioning. The fittings are inspected for damage to the sealing surface per standard operations maintenance instructions. When damage is found on the sealing surface, the condition is documented.

Meta TagsDetails
Citation
"AN Fitting Reconditioning Tool," Mobility Engineering, September 1, 2011.
Additional Details
Publisher
Published
Sep 1, 2011
Product Code
TBMG-10875
Content Type
Magazine Article
Language
English