National Stock Number
4240-01-440-0183
National Stock Number (NSN) 4240-01-440-0183, or NIIN 014400183, (mask,gas) was assigned December 30, 1996 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. 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.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 10097. [AN INDIVIDUAL RESPIRATORY PROTECTIVE DEVICE HAVING A CANISTER, GAS MASK AS THE AIR PURIFYING ELEMENT; DESIGNED TO PROTECT THE WEARER AGAINST INHALATION OF GASES, FUMES AND SMOKES. THE FACEPIECE MAY BE CONNECTED TO THE CANISTER BY A FLEXIBLE HOSE, OR IT MAY BE DESIGNED FOR ATTACHING DIRECTLY TO THE CANISTER. EXCLUDES:RESPIRATORY PROTECTIVE DEVICES DESIGNED TO REGENERATE EXPIRED AIR. EXCLUDES:MASK, OXYGEN; MASK, AIR LINE; MASK, CHEMICAL-BIOLOGICAL AND RESPIRATOR, AIR FILTERING.]. 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 4240014400183 does not contain precious metals.
This information was last updated on Aug 01, 2025.