>> Search results for: DAA7278D257 NSN Search Results National Stock Number (NSN) Description 3040-01-386-4234, 3040013864234 GUIDE,PISTON ROD 3040-01-386-4403 , 3040013864403 GUIDE,PISTON ROD 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