National Stock Number
6635-01-148-5477
National Stock Number (NSN) 6635-01-148-5477, or NIIN 011485477, (block,ultrasonic inspection) was assigned March 8, 1983 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 6635011729292, 6635012113905.
There are 8 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 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: SPE4A624V258B, SPE4A621V1019, SPE4A618PQ696, SPE4A618PQ696, SPM4A612MNC85. The total value of the awarded contracts has been US$ 59,243.00.
This NSN is very common among different weapons systems, belonging to 25 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 5,508. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 19, 2007, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. 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 6635011485477 does not contain precious metals.
This information was last updated on Jul 01, 2025.