>> Search results for: 5559A NSN Search Results National Stock Number (NSN) Description 5998-00-007-7048, 5998000077048 CIRCUIT CARD ASSEMBLY 4820-01-291-5806 , 4820012915806 VALVE,SAFETY RELIEF 4820-00-479-2695, 4820004792695 VALVE,SAFETY RELIEF 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