National Stock Number
5640-00-286-3635
National Stock Number (NSN) 5640-00-286-3635, or NIIN 002863635, (sound controlling blanket) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 3 of those 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, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 30, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 20230. [A MATERIAL COMPOSED OF ONE OR MORE KINDS OF FIBER, WITH OR WITHOUT BINDER ADDED, REINFORCED ON ONE OR BOTH SIDES WITH VARIOUS CONFINING MEDIA SUITABLY BOUND THERETO. IT IS DESIGNED TO ENTRAP AND DISSIPATE SOUND ENERGY, AND MUST BE RATED FOR THIS USE. SEE ALSO INSULATION BLANKET, CABIN, AIRCRAFT.]. 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 5640002863635 does not contain precious metals.
This NSN is associated to Schedule B 6811400000: articles containing asbestos. The Schedule B End Use is listed as shingles, molding, wallboard. NAICS classification category 327999: all other miscellaneous nonmetallic mineral product manufacturing.
This information was last updated on Aug 01, 2025.