National Stock Number
5340-00-351-6647
National Stock Number (NSN) 5340-00-351-6647, or NIIN 003516647, (plug,expansion) has an unknown assigned date. NIIN 003516647 was cancelled on May 20, 1997, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 2 stock numbers: 2805003759270, 5340005454365.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 03797. [A RELATIVELY THIN METALLIC ITEM, HAVING A CONCAVE OR CUPPED CONTOUR, DESIGNED TO EFFECT ITS OWN SEAL BY COMPRESSION AGAINST THE CIRCUMFERENCE OF A HOLE. IT IS USED AS A BLOWOUT PLUG IN BOILERS, ENGINES, AND THE LIKE TO RELIEVE THE PRESSURE CREATED BY THE EXPANSION OF FLUIDS CAUSED BY HEAT OR FREEZING.]. 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 5340003516647 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.