National Stock Number
4240-01-290-1491
National Stock Number (NSN) 4240-01-290-1491, or NIIN 012901491, (canister,chemical-biological mask) has an unknown assigned date. NIIN 012901491 was cancelled on September 2, 2000, 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 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) 17567. [AN AIR FILTERING DEVICE DESIGNED TO BE INSERTED IN THE FACEPIECE OF A MASK, CHEMICAL-BIOLOGICAL. IT IS DESIGNED TO REMOVE FROM THE AIR PASSING THROUGH IT TOXIC AND/OR IRRITATING CHEMICAL VAPORS, GASES AND PARTICULATE CONTAMINANTS (DUST, FUMES, MISTS, FOGS, AND SMOKES) INCLUDING BIOLOGICAL ORGANISMS LIKELY TO TO BE USED IN WARFARE. IT MAY FILTER INDUSTRIAL DUSTS, FUMES, MISTS, FOGS AND SMOKE, BUT IS NOT DESIGNED TO REMOVE INDUSTRIAL TYPE GASES OR VAPORS. SEE ALSO CANISTER, GAS MASK.]. 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). Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 4240012901491 does not contain precious metals.
This information was last updated on Jul 01, 2025.