National Stock Number
5640-01-375-5203
National Stock Number (NSN) 5640-01-375-5203, or NIIN 013755203, (insulation blanket,thermal) was assigned May 13, 1993 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 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 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. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE8E625P0764, SPE8E625V1434, SPE8E623P7027. The total value of the awarded contracts has been US$ 153,422.68.
There has been a small amount of 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 May 15, 1993, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 15120. [A FLEXIBLE MATERIAL COMPOSED OF ONE OR MORE KINDS OF FIBER, WITH OR WITHOUT BINDER ADDED, SUPPLIED IN FLAT SHEETS OR ROLLS. IT MAY HAVE A VAPOR BARRIER OR REINFORCING MATERIAL SUCH AS PAPER, WOVEN WIRE OR OTHER SHEET MATERIAL AFFIXED TO ONE OR BOTH SIDES. IT IS DESIGNED TO PROVIDE RESISTANCE TO THE FLOW OF HEAT, AND MUST BE RATED FOR THIS USE. EXCLUDES:INSULATION COMPONENTS PREFABRICATED INTO DEFINITE SHAPES AND SIZES USED IN AIRCRAFT APPLICATIONS. EXCLUDES:INSULATION BLANKET,THERMAL,AIRCRAFT.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. 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 5640013755203 does not contain precious metals.
This information was last updated on Aug 01, 2025.