National Stock Number
4240-01-529-8341
National Stock Number (NSN) 4240-01-529-8341, or NIIN 015298341, (facepiece assembly,chemical-biol) was assigned May 3, 2005 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, 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 Sep 26, 2019, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 66725. [A COLLECTION OF ITEMS ASSEMBLED ON A FACEPIECE MADE PRIMARILY OF SILICONE RUBBER WITH AN INTURNED SEALING SURFACE THAT PROVIDES FACIAL AND RESPIRATORY PROTECTION FROM CHEMICAL-BIOLOGICAL AGENTS, TOXINS, OR RADIO-ACTIVE PARTICLES. USED IN CONJUNCTION WITH A FACEPIECE AND BREATHING EQUIPMENT, BUT PROVIDES ONLY THE CHEMICAL AND BIOLOGICAL PROTECTION, AS THE FACEPIECE, BREATHING EQUIPMENT PROVIDES THE AIR LINE EQUIPMENT FOR BREATHING CAPABILITY. SUBASSEMBLY OF MASK, CHEMICAL-BIOLOGICAL.]. 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 4240015298341 does not contain precious metals.
This information was last updated on Jul 01, 2025.