National Stock Number
4420-01-225-6543
National Stock Number (NSN) 4420-01-225-6543, or NIIN 012256543, (bonnet,fluid heater industrial) was assigned February 6, 1986 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 May 02, 2006, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 39562. [AN ITEM DESIGNED TO BE ATTACHED TO A SHELL, FLUID HEATER, INDUSTRIAL, TO PROVIDE DIRECTION OF FLOW WITH MINIMUM IMPACT ON TUBE ENDS AND TUBE SHEET, FLUID HEATER, INDUSTRIAL AND PROVIDE ACCESS TO TUBES WITHOUT REMOVAL OF PIPING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4420012256543 does not contain precious metals.
This information was last updated on May 01, 2025.