>> Search results for: AE21857 NSN Search Results National Stock Number (NSN) Description 2530-00-047-4455, 2530000474455 Cancelled -> Replaced by 4820011901029 4820-00-875-1987 , 4820008751987 VALVE,TANK,DRAIN 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