National Stock Number (NSN) 4240-01-329-8078, or NIIN 013298078, (filter element set,chemical-biological mask) was assigned November 24, 1990 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. 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. 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, with the most recent procurement date of Jul 05, 2019. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE8E619V0773, SPE8E619V0773, SPE8EH17V0280, SPE8EH16V1291, SPE8EH15M0852. The total value of the awarded contracts has been US$ 18,494.45.
There has been a small amount of 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 Dec 10, 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. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
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 does not have a nuclear hardened feature but does have other critical feature(s) 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 4240013298078 does not contain precious metals.
This information was last updated on Jul 01, 2025.