National Stock Number
4240-01-049-2973
National Stock Number (NSN) 4240-01-049-2973, or NIIN 010492973, (canister,gas mask) was assigned October 15, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17568. [THE AIR PURIFYING ELEMENT OF GAS MASK, CONSISTING OF A METAL BODY INCLOSING A MECHANICAL FILTER AND A CHEMICAL FILLING WHICH ABSORBS AND NEUTRALIZES TOXIC GASES AND PARTICLES IN THE AIR, ALLOWING PURIFIED AIR TO PASS THROUGH.]. 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 4240010492973 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.