National Stock Number
6550-01-031-6437
National Stock Number (NSN) 6550-01-031-6437, or NIIN 010316437, (differentiation discs,microorganism) was assigned November 27, 1976 in the Federal Logistics Information System (FLIS). NIIN 010316437 was cancelled on December 2, 2015, 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 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are 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 19, 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 is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 31949. [AN ITEM IMPREGNATED WITH A STANDARDIZED QUANTITY OF A CHEMICAL AGENT(S) FOR THE DIFFERENTIATION OF CERTAIN GROUPS OF MICROORGANISMS (PRESUMPTIVE DIFFERENTIATION). FOR DISCS USED FOR SENSITIVITY TESTING, SEE SENSITIVITY DISCS, DIAGNOSTIC.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6550010316437 does not contain precious metals.
This information was last updated on Jul 01, 2025.