National Stock Number
5640-00-255-5570
National Stock Number (NSN) 5640-00-255-5570, or NIIN 002555570, (millboard,asbestos) has an unknown assigned date. NIIN 002555570 was cancelled on May 22, 1997, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 5640002852460.
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) 20231. [A BUILDING AND INDUSTRIAL BOARD CONSISTING OF ASBESTOS FIBERS AND BINDER COMPRESSED INTO SHEETS AND THESE SHEETS SIZED WITH VEGETABLE FIBER. THIS BOARD HAS NEITHER A THERMAL CONDUCTIVITY NOR A SOUND ABSORBING RATING. IT IS USED WHERE PRIMARY IMPORTANCE IS ATTACHED TO THE CHARACTERISTICS; FIRE RETARDENCY, RESISTANCE TO ACIDS, AND RESISTANCE TO HIGH TEMPERATURE FAILURE. EXCLUDES:INSULATION BOARD, THERMAL.]. 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 5640002555570 does not contain precious metals.
This information was last updated on Jul 01, 2025.