National Stock Number
1660-00-020-4483
National Stock Number (NSN) 1660-00-020-4483, or NIIN 000204483, (valve,pressure,anti-g suit) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 000204483 was cancelled on June 2, 2020, 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 is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jan 17, 2020. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A720P4622. The total value of the awarded contracts has been US$ 16,839.72.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
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 is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660000204483 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.