National Stock Number
6550-01-325-8778
National Stock Number (NSN) 6550-01-325-8778, or NIIN 013258778, (differentiation discs,microorganism) was assigned September 13, 1990 in the Federal Logistics Information System (FLIS). NIIN 013258778 was cancelled on May 1, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 6550011554042.
There are 3 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 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.
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. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6550013258778 does not contain precious metals.
This information was last updated on Aug 01, 2025.