National Stock Number
5220-01-561-8021
National Stock Number (NSN) 5220-01-561-8021, or NIIN 015618021, (gage,plug countersink) was assigned March 19, 2008 in the Federal Logistics Information System (FLIS). NIIN 015618021 was cancelled on March 2, 2020, 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 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, 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 unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 30, 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 data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 36335. [A GAGE USED TO COMPARE THE DEPTH AND/OR DIAMETER OF THE COUNTERSINK ON A HOLE TO A KNOWN SIZE BY INSERTION OF THE GAGE IN THE HOLE.]. 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 5220015618021 does not contain precious metals.
This information was last updated on Apr 01, 2025.