National Stock Number
4240-01-249-3559
National Stock Number (NSN) 4240-01-249-3559, or NIIN 012493559, (facepiece,gas mask) was assigned February 11, 1987 in the Federal Logistics Information System (FLIS). NIIN 012493559 was cancelled on July 2, 2002, 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, one supplier is 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) 10103. [INC 10103 CANCELLED/REPLACED BY ,INC 42722, FIIG T282-L, APP-KEY LB ,ON 012712 ~(ALL EXCEPT USA) FOR USA INC 10103 CANCELED REPLACED BY FACEPIECE, BREATHING EQUIPMENT: INC 42722, FIIG T282-L, APPL KEY LB.]. This item has critical features 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 4240012493559 does not contain precious metals.
This information was last updated on Aug 01, 2025.