National Stock Number (NSN) 4720-00-268-6451, or NIIN 002686451, (hose,air duct) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 4720002203989, 4720010207210, 2940007877129, 2940008077285.
There are 13 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 17, 2017. There have been 6 contracts issued for this part number, with 6 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: SPE7MC17P3139, SPE7M415M1393, SPE7M015V5951, SPE7M015V5740, SPM7M011V2110. The total value of the awarded contracts has been US$ 5,619.04.
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 Apr 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 11116. [A FLEXIBLE, TUBULAR ITEM OF LIGHT WALL CONSTRUCTION. IT MUST HAVE SINGLE OR MULTIPLE LAYERS OF NONMETALLIC MATERIAL, BUT MAY CONTAIN METAL WIRE REINFORCEMENT, FOIL TYPE LINER, AND/OR WOVEN OR BRAIDED COVER. IT IS DESIGNED TO CONVEY UNDER LOW PRESSURE GASEOUS MATERIAL, SUCH AS AIR AND FUMES, AND LIGHT WEIGHT SOLID MATERIALS, SUCH AS DUST, POWDERS, AND FIBERS. FOR ITEMS WITH COUPLINGS, SEE HOSE ASSEMBLY, AIR DUCT. FOR ITEMS OF SLEEVE SECTION DESIGN RATED FOR HIGH PRESSURE USE, SEE SLEEVE, SEAL, COUPLING. EXCLUDES:HOSE, 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 4720002686451 does not contain precious metals.
This NSN is associated to Schedule B 4009320050: tubes, pipes and hoses of vulcanized rubber, exc hard rubber, reinforced or otherwise combined only w/ textile materials, w/ fittings, exc brake hoses. The Schedule B End Use is listed as industrial rubber products. NAICS classification category 326220: rubber and plastics hoses and belting manufacturing.
This information was last updated on Jul 01, 2025.