National Stock Number
4240-01-249-3175
National Stock Number (NSN) 4240-01-249-3175, or NIIN 012493175, (facepiece,gas mask) was assigned February 10, 1987 in the Federal Logistics Information System (FLIS). NIIN 012493175 was cancelled on June 2, 2007, 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 2 manufacturer part numbers associated with this NSN. One of those 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.
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 does not have a nuclear hardened feature but does have other critical feature(s) 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 4240012493175 does not contain precious metals.
This information was last updated on Aug 01, 2025.