National Stock Number
4240-01-573-5871
National Stock Number (NSN) 4240-01-573-5871, or NIIN 015735871, (mask,air line) was assigned April 28, 2009 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those 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 been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 10 contracts issued for this part number, with 10 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE8E525V0909, SPE8E525P0461, SPE8E522V1859, SPE8E622V0118, SPE8E621P1100. The total value of the awarded contracts has been US$ 384,853.54.
This NSN is unique to one weapons system.
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 Dec 10, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17544. [AN INDIVIDUAL RESPIRATORY PROTECTIVE DEVICE CONSISTING OF A FACEPIECE FLEXIBLE BREATHING TUBE, AIR REGULATING VALVE, AND A QUICK RELEASE HOSE COUPLING. THE DEVICE MAY ALSO INCLUDE AN AIR FILTER FOR REMOVING FOREIGN PARTICLES AND ODORS FROM THE AIR SUPPLY LINE, AN ADJUSTABLE WAIST BELT, AND AN AIR HOSE WITH FITTINGS FOR CONNECTING THE DEVICE TO A SUPPLY OF COMPRESSED AIR. A BRACKET IS USUALLY PROVIDED FOR ATTACHING THE REGULATING VALVE TO THE BELT. THIS DEVICE IS DESIGNED TO SUPPLY FRESH AIR TO THE WEARER WHILE IN DUST LADEN AND CONTAMINATED AREAS. EXCLUDES:OXYGEN BREATHING APPARATUS. EXCLUDES:MASK, GAS; MASK, OXYGEN 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 4240015735871 does not contain precious metals.
This information was last updated on Aug 01, 2025.