National Stock Number
4420-01-687-0559
National Stock Number (NSN) 4420-01-687-0559, or NIIN 016870559, (bonnet,fluid cooler,industrial) was assigned March 16, 2020 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 17, 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. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 37495. [AN ITEM DESIGNED TO BE ATTACHED TO A SHELL, FLUID COOLER, INDUSTRIAL TO PROVIDE DIRECTION OF FLOW WITH MINIMUM IMPACT ON TUBE ENDS AND TUBE SHEET, FLUID COOLER, INDUSTRIAL AND PROVIDE ACCESS TO TUBES WITHOUT REMOVAL OF PIPING.]. 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 4420016870559 does not contain precious metals.
This information was last updated on May 01, 2025.