>> Search results for: 3990099 NSN Search Results National Stock Number (NSN) Description 2990-01-631-7920, 2990016317920 ADAPTER,FILLER NECK 5841-99-611-6648 , 5841996116648 PROCESSOR,RADAR DAT 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