>> Search results for: DD421S490296PC3 NSN Search Results National Stock Number (NSN) Description 4710-00-336-9195, 4710003369195 TUBE,METALLIC 5310-00-223-3171 , 5310002233171 WASHER,FLAT 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