National Stock Number
4730-00-377-4226
National Stock Number (NSN) 4730-00-377-4226, or NIIN 003774226, (seal,conical,flared tube fitting) was assigned March 16, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4730012367944.
There are 16 manufacturer part numbers associated with this NSN. 14 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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 Dec 20, 2019. 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 4 different suppliers. The last contract numbers awarded were: SPE7M320P1470, SPE7M319P1554, SPE7M319P1554, SPE7M418P3195, SPE7M316V1152. The total value of the awarded contracts has been US$ 22,706.18.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
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 12, 2019, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 32837. [A CYLINDRICAL SOFT METALLIC CRUSH ITEM USED TO SEAL HIGH PRESSURE FLARED TUBE CONNECTIONS. IT IS DESIGNED TO BE INSERTED BETWEEN THE CONICAL SURFACE OF A FLARED TUBE FITTING AND THE INNER SURFACE OF THE FLARED END OF THE CONNECTING TUBE.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730003774226 does not contain precious metals.
This information was last updated on Jun 01, 2025.