National Stock Number
4240-00-542-5588
National Stock Number (NSN) 4240-00-542-5588, or NIIN 005425588, (filter unit,gas-particulate) has an unknown assigned date. NIIN 005425588 was cancelled on September 23, 1999, with a cancelled status of "Item is Cancelled - Inactive." 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) 19445. [A UNIT CONSISTING OF A POWER DRIVEN FAN OR BLOWER, GAS AND PARTICULATE FILTER(S), OR GAS-PARTICULATE FILTER ASSEMBLY. IT IS USED FOR REMOVING BIOLOGICAL, CHEMICAL, AND RADIOLOGICAL CONTAMINANTS FROM AIR SUPPLIED TO BUILDINGS, SHELTERS, TRAILER VANS, AND THE LIKE, OR TO INDIVIDUAL HOSE CONNECTED FACE MASKS AND/OR HEADPIECES.]. 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 4240005425588 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.