National Stock Number
2530-00-497-4639
National Stock Number (NSN) 2530-00-497-4639, or NIIN 004974639, (tube assy,brake) was assigned October 2, 1970 in the Federal Logistics Information System (FLIS). NIIN 004974639 was cancelled on December 5, 2019, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 2 suppliers. Today, one supplier is listed as an Active supplier 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 assigned to Item Name Code (INC) 77777. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2530004974639 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.