National Stock Number
1660-00-463-6678
National Stock Number (NSN) 1660-00-463-6678, or NIIN 004636678, (hose,air duct,air breathing) was assigned September 17, 1969 in the Federal Logistics Information System (FLIS). NIIN 004636678 was cancelled on November 2, 1999, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4720001201716. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 30599. [AN ODORLESS, FLEXIBLE, HOLLOW ITEM, WITHOUT END COUPLING OR A COMMUNICATION CABLE. IT MAY BE OF SINGLE OR MULTIPLE LAYER CONSTRUCTION AND MAY CONTAIN WIRE REINFORCEMENT. IT IS DESIGNED FOR USE IN LOW PRESSURE BREATHING OXYGEN SYSTEM, AIR LINE MASKS, AND THE LIKE. EXCLUDES:HOSE, NONMETALLIC.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004636678 does not contain precious metals.
This information was last updated on Jul 01, 2025.