>> Search results for: 2178638PC1 NSN Search Results National Stock Number (NSN) Description 4470-00-079-7023, 4470000797023 SEAL RING,NUCLEAR COOLANT SYSTEM 4470-00-157-2128 , 4470001572128 Cancelled -> Replaced by 4470000797023 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