NSN 1025-99-834-8242, 1025998348242
RING,OBTURATOR

Federal Supply Classification: FSC 1025 - Guns, over 150mm through 200mm
National Item Identification Number: NIIN 998348242
Codification Country: United Kingdom
Item Name Code: INC 40560
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 1025-99-834-8242

National Stock Number (NSN) 1025-99-834-8242, or NIIN 998348242, (ring,obturator) has an unknown assigned date. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to 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 information was last updated on Dec 12, 2025.