National Stock Number
1660-00-652-3743
National Stock Number (NSN) 1660-00-652-3743, or NIIN 006523743, (adapter,air inlet,heat exchanger) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 006523743 was cancelled on June 17, 1998, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to 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) 42180. [AN ITEM USED TO PROVIDE THE MEANS FOR THE ATTACHMENT OF HOSES OR TUBES TO THE AIR OF A HEAT EXCHANGER.]. 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 1660006523743 does not contain precious metals.
This information was last updated on Aug 01, 2025.