National Stock Number
2540-01-557-0453
National Stock Number (NSN) 2540-01-557-0453, or NIIN 015570453, (insulation,thermal,vehicular) was assigned October 11, 2007 in the Federal Logistics Information System (FLIS). NIIN 015570453 was cancelled on June 2, 2012, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5970015695468. 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, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Sep 25, 2009. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7L409V1049. The total value of the awarded contracts has been US$ 86.08.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 42144. [AN ITEM COMPOSED OF FIBER, PLASTIC FOAM, OR SYNTHETIC MATERIAL IN VARIOUS SHAPES AND SIZES AND MAY CONTAIN BOLT HOLE(S). IT IS DESIGNED TO PROVIDE RESISTANCE TO THE FLOW OF HEAT.]. 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 2540015570453 does not contain precious metals.
This information was last updated on Aug 01, 2025.