National Stock Number
5640-00-781-5546
National Stock Number (NSN) 5640-00-781-5546, or NIIN 007815546, (insulation felt,thermal) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). NIIN 007815546 was cancelled on February 20, 2002, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
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) 20232. [A FLEXIBLE OR SEMIRIGID MATERIAL COMPOSED OF ONE OR MORE KINDS OF FIBER WITH AN ADDED BINDER, SUPPLIED IN FLAT SHEETS OR ROLLS. IT IS DESIGNED TO OFFER RESISTANCE TO THE FLOW OF HEAT, AND MUST BE RATED FOR THIS USE. FOR FELTED INSULATION WITH PAPER OR OTHER SHEET MATERIAL AFFIXED TO ONE OR BOTH SIDES, SEE INSULATION BLANKET, THERMAL. EXCLUDES:FELT SHEET AND FELT STRIP.]. 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 5640007815546 does not contain precious metals.
This information was last updated on Aug 01, 2025.