National Stock Number
4240-01-329-8081
National Stock Number (NSN) 4240-01-329-8081, or NIIN 013298081, (filter element set,chemical-biological mask) was assigned November 24, 1990 in the Federal Logistics Information System (FLIS). NIIN 013298081 was cancelled on June 2, 2003, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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, there are no suppliers 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 31523. [AIR FILTERING DEVICES, ESPECIALLY DESIGNED TO BE INSERTED IN THE FACEPIECE OF THE MASK. THE FILTERS REMOVE FROM THE AIR PASSING THROUGH THEM TOXIC AND/OR IRRITATING CHEMICAL VAPORS, GASES, AND PARTICULATE CONTAMINANTS (DUSTS, FUMES, MISTS, FOGS, AND SMOKE), INCLUDING BIOLOGICAL ORGANISMS LIKELY TO BE USED IN WARFARE. THEY MAY FILTER INDUSTRIAL DUSTS, FUMES, MISTS, FOGS, AND SMOKE, BUT ARE NOT DESIGNED TO REMOVE INDUSTRIAL TYPE GASES OR VAPORS.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). 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 4240013298081 does not contain precious metals.
This information was last updated on May 01, 2025.