National Stock Number (NSN) 4720-01-049-3700, or NIIN 010493700, (hose assembly,air duct,air breat) was assigned October 18, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4720001322820.
There are 4 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 not been procured by the US Government in over 5 years, with the most recent procurement date of Jul 12, 2016. There have been 21 contracts issued for this part number, with 21 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M416M4044, SPE7M416M4044, SPE7M416V0955, SPE7M415M2985, SPE7M415M2985. The total value of the awarded contracts has been US$ 380,437.05.
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. The 24 month forecast from the US Government for this part number has low volatility, with an estimated forecasted value of US$ 336,153. 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 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) 30600. [A LENGTH OF HOSE, AIR DUCT, AIR BREATHING WHICH MAY HAVE END COUPLINGS ON ONE OR BOTH END/OR INCORPORATES A COMMUNICATION CABLE. IT IS DESIGNED FOR USE IN BREATHING OXYGEN SYSTEM, AIR LINE MASKS, GAS MASKS, AND THE LIKE. EXCLUDES:ITEMS WHICH INCLUDE THE BRANCH OR FORK HOSES; ASSEMBLIES MADE UP OF THE OXYGEN BREATHING HOSE, COMMUNICATION CABLE, WIRING FOR FACE MASK HEATER, AND VENT AND PRESSURE DUCTS FOR THE ANTI-GSUIT AND HOSE ASSEMBLY, NONMETALLIC.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4720010493700 does not contain precious metals.
This information was last updated on Aug 01, 2025.