National Stock Number
4240-01-251-1875
National Stock Number (NSN) 4240-01-251-1875, or NIIN 012511875, (filter,gas-particulate) was assigned March 14, 1987 in the Federal Logistics Information System (FLIS). NIIN 012511875 was cancelled on October 2, 2006, 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) 10099. [AN ITEM CONSISTING OF MECHANICAL AND CHEMICAL FILTERS DESIGNED TO ELIMINATE FROM THE CONTAMINATED AIR PASSING THROUGH IT, BIOLOGICAL ORGANISMS, RADIOACTIVE PARTICLES, AND TOXIC AND/OR IRRITATING CHEMICAL GASES AND VAPORS LIKELY TO BE USED IN WARFARE. IT IS DESIGNED FOR SPECIFIC USE WITH FILTER UNIT, GAS-PARTICULATE. IT MAY BE SUPPLIED WITH A FRAME,MOUNTING,GAS-PARTICULATE. IT MAY OR MAY NOT HAVE A REGULATOR.]. 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 4240012511875 does not contain precious metals.
This information was last updated on Jul 01, 2025.