National Stock Number
4240-01-312-2940
National Stock Number (NSN) 4240-01-312-2940, or NIIN 013122940, (filter assembly,gas) was assigned December 13, 1989 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, 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.
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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 21, 2003, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 42379. [AN ASSEMBLY DESIGNED TO FILTER THE AIRFOLW NEAR VENTILATION EQUPMENT FROM NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) MATERIALS. IT CONSISTS OF A PERMANENTYL INSTALLED HOUSING AND TWO OR MORE REPLACEABLE MODULAR GAS FILTERS ON TRAYS.]. This item does not have a critical feature 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 4240013122940 does not contain precious metals.
This information was last updated on Jul 01, 2025.