>> Search results for: B31321 NSN Search Results National Stock Number (NSN) Description 6550-01-031-6170, 6550010316170 SENSITIVITY DISCS,DIAGNOSTIC 3040-00-485-7852 , 3040004857852 CONNECTING LINK,RIGID 3040-01-090-8150, 3040010908150 Cancelled -> Replaced by 3040004857852 2990-01-191-6643 , 2990011916643 PIPE,EXHAUST 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