National Stock Number
4730-01-287-7863
National Stock Number (NSN) 4730-01-287-7863, or NIIN 012877863, (coupling assembly,sound isolatio) was assigned October 27, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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.
This part number has not been procured by the US Government in over a year. There have been 18 contracts issued for this part number, with 18 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: SPE7M324P0849, SPE7M324V1087, SPE7M323V2520, SPE7M023P4149, SPE7M323V2343. The total value of the awarded contracts has been US$ 601,064.09.
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 Apr 02, 2005, 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) 33641. [A MULTIPIECE ITEM SPECIFICALLY DESIGNED FOR USE IN A PIPING SYSTEM TO FORM A FLEXIBLE, SOUND PROOF PIPE JOINT. IT HAS A FLANGE CONNECTION ON ONE END DESIGNED TO CONNECT WITH ANOTHER FLANGE CONNECTION. THE OTHER HAS A FLANGE PAD DESIGNED TO ACCOMMODATE A COMPANION FLANGE.]. 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 4730012877863 does not contain precious metals.
This information was last updated on Aug 01, 2025.