National Stock Number
4240-01-266-6917
National Stock Number (NSN) 4240-01-266-6917, or NIIN 012666917, (filter,gas-particulate) was assigned October 30, 1987 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, 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 unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 18, 2010, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 10099. [AN ITEM CONSISTING OF MECHANICAL AND CHEMICAL FILTERS DESIGNED TO ELIMINATE FROM THE CONTAMINATED AIR PASSING THROUGH IT, BIOLOGICAL ORGANISMS, RADIOACTIVE PARTICLES, AND TOXIC AND/OR IRRITATING CHEMICAL GASES AND VAPORS LIKELY TO BE USED IN WARFARE. IT IS DESIGNED FOR SPECIFIC USE WITH FILTER UNIT, GAS-PARTICULATE. IT MAY BE SUPPLIED WITH A FRAME,MOUNTING,GAS-PARTICULATE. IT MAY OR MAY NOT HAVE A REGULATOR.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. 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 4240012666917 does not contain precious metals.
This NSN is associated to Schedule B 9020008000: other breathing appliances and gas masks and parts and accessories, nesoi. The Schedule B End Use is listed as toys, games, and sporting goods. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Jul 01, 2025.