National Stock Number
1660-00-063-4857
National Stock Number (NSN) 1660-00-063-4857, or NIIN 000634857, (valve,pressure,anti-g suit) was assigned June 20, 1967 in the Federal Logistics Information System (FLIS). NIIN 000634857 was cancelled on May 18, 2012, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1660011102548. This NSN replaces 1 stock number, 5340001227420.
There are 5 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 61648. [A VALVE DESIGNED AND CONSTRUCTED TO RECEIVE AIR FROM A SOURCE IN AN AIRCRAFT AND TO PROVIDE AIR AT THE PROPER PRESSURE FOR THE OPERATION OF A PILOT'S ANTI-G SUIT DURING POSITIVE ACCELERATION.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660000634857 does not contain precious metals.
This information was last updated on Aug 01, 2025.