>> Search results for: 31FCB3 NSN Search Results National Stock Number (NSN) Description 4820-00-137-9214, 4820001379214 Cancelled -> Replaced by 4820004722549 4820-00-137-9212 , 4820001379212 Cancelled -> Replaced by 4820012909053 4820-01-284-6123, 4820012846123 SEAT,VALVE 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