National Stock Number
4240-00-022-2524
National Stock Number (NSN) 4240-00-022-2524, or NIIN 000222524, (respirator,air filtering) was assigned December 24, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 12 stock numbers. Five of the National Stock Numbers that it replaces are: 4240010251418, 4240001069779, 4240010653720, 4240010638889, 4240008900783.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 17294. [AN INDIVIDUAL RESPIRATORY PROTECTIVE DEVICE, DESIGNED TO REMOVE ORGANIC VAPORS, SOLID PARTICLES AND/OR LIGHT CONCENTRATIONS OF POISONOUS GAS IF WITH CHEMICAL CARTRIDGE(S). IT MAY INCLUDE A HOOD DESIGNED TO COVER USER'S HEAD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 4240000222524 does not contain precious metals.
This NSN is associated to Schedule B 9019200000: ozone therapy, oxygen therapy, aerosol therapy, artifical respiration or other therapeutic respiration apparatus; parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Aug 01, 2025.