National Stock Number
4730-00-277-5358
National Stock Number (NSN) 4730-00-277-5358, or NIIN 002775358, (sleeve,flared,tube fitting) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4730002043511.
There are 7 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 suppliers are 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 May 13, 2016. There have been 10 contracts issued for this part number, with 17 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7M116VC899, SPE7M116VC899, SPE7M114VE223, SPE7M114VB390, SPE7M114V8646. The total value of the awarded contracts has been US$ 10,160.34.
This NSN is fairly common among different weapons systems, belonging to 11 different platforms.
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 Jun 09, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 18027. [A FLANGED CYLINDRICAL METALLIC ITEM DESIGNED TO BE USED ON TUBING TO BACK UP THE FLARED END AND TO PROVIDE A BEARING SURFACE FOR THE COUPLING NUT, THEREBY REDUCING WEAR ON THE TUBING FLARE. THE INSIDE DIAMETER OF THE FLANGED END IS COUNTERSUNK TO FORM A SEAT FOR THE FLARE WHEN ASSEMBLED TO A MATING FITTING.]. 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 4730002775358 does not contain precious metals.
This information was last updated on Aug 01, 2025.