National Stock Number
6550-01-172-1171
National Stock Number (NSN) 6550-01-172-1171, or NIIN 011721171, (reference standard set,calcium,phosphorus,and magnesium) was assigned February 16, 1984 in the Federal Logistics Information System (FLIS). NIIN 011721171 was cancelled on March 23, 2002, 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is 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) 37623. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). 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 6550011721171 does not contain precious metals.
This information was last updated on Aug 01, 2025.