National Stock Number
4730-00-064-8581
National Stock Number (NSN) 4730-00-064-8581, or NIIN 000648581, (coupling assembly,sound isolatio) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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 5 years.
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 has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
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 4730000648581 does not contain precious metals.
This information was last updated on Jul 01, 2025.