National Stock Number
5640-01-031-1262
National Stock Number (NSN) 5640-01-031-1262, or NIIN 010311262, (insulation block,thermal) was assigned November 19, 1976 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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.
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) 15117. [A RIGID ITEM DESIGNED TO PROVIDE LOW THERMAL CONDUCTIVITY. IT IS COMPOSED OF ONE OR MORE KINDS OF GRANULES AND/OR FIBER WITH BINDER ADDED, AND HAS NO SPECIFIC SURFACE PERFORATIONS, FISSURES, SLOTS OR THE LIKE. IT IS SUPPLIED IN LENGTHS UP TO AND INCLUDING 36 INCHES (914.4 MM). FOR LONGER ITEMS, SEE INSULATION BOARD, THERMAL. EXCLUDES:BUILDING BOARD (AS MODIFIED); MILLBOARD, ASBESTOS; ASBESTOS SHEET, COMPRESSED; CORK SHEET; CORK AND RUBBER SHEET; AND FIBERBOARD (AS MODIFIED). SEE ALSO 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 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 5640010311262 does not contain precious metals.
This NSN is associated to Schedule B 6806900050: mixtures and articles of heat-insulating sound-absorbing mineral materials, nesoi. The Schedule B End Use is listed as shingles, molding, wallboard. NAICS classification category 327993: mineral wool manufacturing.
This information was last updated on Jul 01, 2025.