>> Search results for: UH3C3 NSN Search Results National Stock Number (NSN) Description 4820-99-301-3232, 4820993013232 VALVE,PORT MOUNT 4820-99-327-7840 , 4820993277840 VALVE,PORT MOUNT 4820-99-037-0439, 4820990370439 VALVE,PORT MOUNT 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