National Stock Number
4730-01-042-9681
National Stock Number (NSN) 4730-01-042-9681, or NIIN 010429681, (insert set,sound isolation) was assigned June 17, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4730009674192.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
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 for the first time. (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) 33462. [A MULTIPIECE ITEM CONSISTING OF A NONMETALLIC POSITIONING INSERT, THRUST INSERT WITH A BONDED WASHER AND A METALLIC BACKUP WASHER. IT IS SPECIFICALLY DESIGNED FOR USE IN A PIPING SYSTEM SOUND ISOLATION COUPLING FLEXIBLE CONNECTOR FOR THE PURPOSE OF ISOLATING SOUND.]. 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 4730010429681 does not contain precious metals.
This NSN is associated to Schedule B 8484100000: gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Jul 01, 2025.