National Stock Number (NSN) 1660-01-535-3433, or NIIN 015353433, (insulation blanket,thermal,aircr) was assigned November 24, 2005 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 Feb 26, 2019. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A419V4423, SPE4A713M5094. The total value of the awarded contracts has been US$ 25,134.00.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
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 Jan 08, 2013, 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) 51634. [A FLEXIBLE ITEM COMPOSED OF ONE OR MORE KINDS OF FIBERS PREFABRICATED INTO VARIOUS SHAPES AND SIZES. IT MAY HAVE A VAPOR BARRIER AND IS COVERED ON ONE OR BOTH SIDES WITH A JACKET MATERIAL SUCH AS VINYL OR OTHER SHEET MATERIAL. IT MAY HAVE MOUNTING PROVISIONS SUCH AS HOLES OR SNAPS TO FACILITATE INSTALLATION. IT IS DESIGNED TO COVER AIR CONDITIONING, HEATING, COOLING, PRESSURIZING, DE-ICING COMPONENTS AND AIR DUCTS TO PREVENT OR REDUCE THE TRANSFER OF HEAT. EXCLUDES:RIGID AIR DUCT COVERINGS AND INSULATION MATERIAL SUPPLIED IN FLAT SHEETS OR ROLLS. EXCLUDES:INSULATION PIPE COVERING,THERMAL,AIRCRAFT AND INSULATION BLANKET,THERMAL.]. 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 1660015353433 does not contain precious metals.
This NSN is associated to Schedule B 8803300060: other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Aug 01, 2025.