>> Search results for: MV31F4D4IN NSN Search Results National Stock Number (NSN) Description 4820-01-271-1897, 4820012711897 VALVE,CHECK 4820-01-339-1670 , 4820013391670 DISK,VALVE 4820-01-339-2194, 4820013392194 SEAT,VALVE 5330-01-339-0736 , 5330013390736 GASKET 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