>> Search results for: 3516C1 NSN Search Results National Stock Number (NSN) Description 5940-00-817-9294, 5940008179294 Cancelled -> Replaced by 5940008408211 2530-99-452-1221 , 2530994521221 RING,PISTON 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information