National Stock Number
1025-01-527-8508
National Stock Number (NSN) 1025-01-527-8508, or NIIN 015278508, (ring,obturator) was assigned February 18, 2005 in the Federal Logistics Information System (FLIS). NIIN 015278508 was cancelled on December 2, 2012, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1025015693629. 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 40560. [A METALLIC OR NONMETALLIC CIRCULAR ITEM SPECIFICALLY DESIGNED TO BE PLACED AT THE BREECH-BLOCK END OF A GUN BARREL CHAMBER FOR SEALING AGAINST POWDER GASES. IT IS ALSO USED TO SEAL AGAINST POWDER GASES BETWEEN A PROJECTILE AND THE GUN BARREL.]. 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 1025015278508 does not contain precious metals.
This information was last updated on May 01, 2025.