National Stock Number
4240-01-055-6172
National Stock Number (NSN) 4240-01-055-6172, or NIIN 010556172, (breathing apparatus,oxygen gener) was assigned February 8, 1978 in the Federal Logistics Information System (FLIS). 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.
There has been very little 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 Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 17300. [A PORTABLE RESPIRATORY PROTECTIVE DEVICE DESIGNED TO GENERATE OXYGEN FROM CHEMICALS AND PROVIDE RESPIRABLE AIR TO THE WEARER BY MEANS OF A CLOSED RECYCLING SYSTEM WITHOUT RECOURSE TO ATMOSPHERIC AIR SUPPLY.]. 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 4240010556172 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.