>> Search results for: X1440T64M NSN Search Results National Stock Number (NSN) Description 4310-00-451-7989, 4310004517989 RING,PISTON 4310-99-915-2338 , 4310999152338 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